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data/mdn-content/files/en-us/learn/javascript/objects
data/mdn-content/files/en-us/learn/javascript/objects/adding_bouncing_balls_features/index.md
--- title: Adding features to our bouncing balls demo slug: Learn/JavaScript/Objects/Adding_bouncing_balls_features page-type: learn-module-assessment --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Objects/Object_building_practice", "", "Learn/JavaScript/Objects")}} In this assessment, you are expected to u...
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data/mdn-content/files/en-us/learn/javascript/objects
data/mdn-content/files/en-us/learn/javascript/objects/classes_in_javascript/index.md
--- title: Classes in JavaScript slug: Learn/JavaScript/Objects/Classes_in_JavaScript page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Objects/Object-oriented_programming", "Learn/JavaScript/Objects/JSON", "Learn/JavaScript/Objects")}} In [the last article](/en-US/docs/Learn/Ja...
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data/mdn-content/files/en-us/learn/javascript/objects
data/mdn-content/files/en-us/learn/javascript/objects/test_your_skills_colon__object-oriented_javascript/index.md
--- title: "Test your skills: Object-oriented JavaScript" slug: Learn/JavaScript/Objects/Test_your_skills:_Object-oriented_JavaScript page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Classes in JavaScript](/en-US/docs/Learn/JavaScript/Objec...
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data/mdn-content/files/en-us/learn/javascript/objects
data/mdn-content/files/en-us/learn/javascript/objects/object_prototypes/index.md
--- title: Object prototypes slug: Learn/JavaScript/Objects/Object_prototypes page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Objects/Basics", "Learn/JavaScript/Objects/Object-oriented_programming", "Learn/JavaScript/Objects")}} Prototypes are the mechanism by which JavaScript...
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data/mdn-content/files/en-us/learn/javascript/objects
data/mdn-content/files/en-us/learn/javascript/objects/object_prototypes/myobject-prototype-chain.svg
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data/mdn-content/files/en-us/learn/javascript/objects
data/mdn-content/files/en-us/learn/javascript/objects/object_prototypes/mydate-prototype-chain.svg
<svg xmlns="http://www.w3.org/2000/svg" style="background-color:#fff" xmlns:xlink="http://www.w3.org/1999/xlink" width="1087" height="192" viewBox="-0.5 -0.5 1087 192"><path fill="#fff" stroke="#000" stroke-width="1.5" pointer-events="all" d="M19.5 34.5h120v120h-120z"/><switch transform="matrix(1.5 0 0 1.5 -.5 -.5)"><f...
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data/mdn-content/files/en-us/learn/javascript/objects
data/mdn-content/files/en-us/learn/javascript/objects/test_your_skills_colon__object_basics/index.md
--- title: "Test your skills: Object basics" slug: Learn/JavaScript/Objects/Test_your_skills:_Object_basics page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [JavaScript object basics](/en-US/docs/Learn/JavaScript/Objects/Basics) article. > ...
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data/mdn-content/files/en-us/learn/javascript
data/mdn-content/files/en-us/learn/javascript/howto/index.md
--- title: Solve common problems in your JavaScript code slug: Learn/JavaScript/Howto page-type: landing-page --- {{LearnSidebar}} The following links point to solutions to common problems you may encounter when writing JavaScript. ## Common beginner's mistakes ### Correct spelling and casing If your code doesn't ...
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data/mdn-content/files/en-us/learn/javascript
data/mdn-content/files/en-us/learn/javascript/first_steps/index.md
--- title: JavaScript First Steps slug: Learn/JavaScript/First_steps page-type: learn-module --- {{LearnSidebar}} In our first JavaScript module, we first answer some fundamental questions such as "what is JavaScript?", "what does it look like?", and "what can it do?", before moving on to taking you through your firs...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/strings/index.md
--- title: Handling text β€” strings in JavaScript slug: Learn/JavaScript/First_steps/Strings page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/First_steps/Math", "Learn/JavaScript/First_steps/Useful_string_methods", "Learn/JavaScript/First_steps")}} Next, we'll turn our attention...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/a_first_splash/index.md
--- title: A first splash into JavaScript slug: Learn/JavaScript/First_steps/A_first_splash page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/First_steps/What_is_JavaScript", "Learn/JavaScript/First_steps/What_went_wrong", "Learn/JavaScript/First_steps")}} Now you've learned som...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/what_is_javascript/index.md
--- title: What is JavaScript? slug: Learn/JavaScript/First_steps/What_is_JavaScript page-type: learn-module-chapter --- {{LearnSidebar}}{{NextMenu("Learn/JavaScript/First_steps/A_first_splash", "Learn/JavaScript/First_steps")}} Welcome to the MDN beginner's JavaScript course! In this article we will look at JavaScri...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/test_your_skills_colon__strings/index.md
--- title: "Test your skills: Strings" slug: Learn/JavaScript/First_steps/Test_your_skills:_Strings page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Handling text β€” strings in JavaScript](/en-US/docs/Learn/JavaScript/First_steps/Strings) an...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/test_your_skills_colon__variables/index.md
--- title: "Test your skills: variables" slug: Learn/JavaScript/First_steps/Test_your_skills:_variables page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Storing the information you need β€” Variables](/en-US/docs/Learn/JavaScript/First_steps/...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/what_went_wrong/index.md
--- title: What went wrong? Troubleshooting JavaScript slug: Learn/JavaScript/First_steps/What_went_wrong page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/First_steps/A_first_splash", "Learn/JavaScript/First_steps/Variables", "Learn/JavaScript/First_steps")}} When you built up ...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/test_your_skills_colon__math/index.md
--- title: "Test your skills: Math" slug: Learn/JavaScript/First_steps/Test_your_skills:_Math page-type: learn-module-assessment --- {{learnsidebar}} The aim of the tests on this page is to assess whether you've understood the [Basic math in JavaScript β€” numbers and operators](/en-US/docs/Learn/JavaScript/First_steps...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/arrays/index.md
--- title: Arrays slug: Learn/JavaScript/First_steps/Arrays page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/First_steps/Useful_string_methods", "Learn/JavaScript/First_steps/Silly_story_generator", "Learn/JavaScript/First_steps")}} In the final article of this module, we'll lo...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/test_your_skills_colon__arrays/index.md
--- title: "Test your skills: Arrays" slug: Learn/JavaScript/First_steps/Test_your_skills:_Arrays page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Arrays](/en-US/docs/Learn/JavaScript/First_steps/Arrays) article. > **Note:** You can try so...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/useful_string_methods/index.md
--- title: Useful string methods slug: Learn/JavaScript/First_steps/Useful_string_methods page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/First_steps/Strings", "Learn/JavaScript/First_steps/Arrays", "Learn/JavaScript/First_steps")}} Now that we've looked at the very basics of ...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/math/index.md
--- title: Basic math in JavaScript β€” numbers and operators slug: Learn/JavaScript/First_steps/Math page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/First_steps/Variables", "Learn/JavaScript/First_steps/Strings", "Learn/JavaScript/First_steps")}} At this point in the course, we...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/silly_story_generator/index.md
--- title: Silly story generator slug: Learn/JavaScript/First_steps/Silly_story_generator page-type: learn-module-assessment --- {{LearnSidebar}}{{PreviousMenu("Learn/JavaScript/First_steps/Arrays", "Learn/JavaScript/First_steps")}} In this assessment you'll be tasked with taking some of the knowledge you've picked u...
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data/mdn-content/files/en-us/learn/javascript/first_steps
data/mdn-content/files/en-us/learn/javascript/first_steps/variables/index.md
--- title: Storing the information you need β€” Variables slug: Learn/JavaScript/First_steps/Variables page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/First_steps/What_went_wrong", "Learn/JavaScript/First_steps/Math", "Learn/JavaScript/First_steps")}} After reading the last coup...
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data/mdn-content/files/en-us/learn/javascript
data/mdn-content/files/en-us/learn/javascript/building_blocks/index.md
--- title: JavaScript building blocks slug: Learn/JavaScript/Building_blocks page-type: learn-module --- {{LearnSidebar}} In this module, we continue our coverage of all JavaScript's key fundamental features, turning our attention to commonly-encountered types of code blocks such as conditional statements, loops, fun...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/test_your_skills_colon__loops/index.md
--- title: "Test your skills: Loops" slug: Learn/JavaScript/Building_blocks/Test_your_skills:_Loops page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Looping code](/en-US/docs/Learn/JavaScript/Building_blocks/Looping_code) article. > **Note...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/events/index.md
--- title: Introduction to events slug: Learn/JavaScript/Building_blocks/Events page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Building_blocks/Return_values","Learn/JavaScript/Building_blocks/Image_gallery", "Learn/JavaScript/Building_blocks")}} Events are things that happen ...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/image_gallery/index.md
--- title: Image gallery slug: Learn/JavaScript/Building_blocks/Image_gallery page-type: learn-module-assessment --- {{LearnSidebar}}{{PreviousMenu("Learn/JavaScript/Building_blocks/Events", "Learn/JavaScript/Building_blocks")}} Now that we've looked at the fundamental building blocks of JavaScript, we'll test your k...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/test_your_skills_colon__events/index.md
--- title: "Test your skills: Events" slug: Learn/JavaScript/Building_blocks/Test_your_skills:_Events page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Introduction to events](/en-US/docs/Learn/JavaScript/Building_blocks/Events) article. > ...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/test_your_skills_colon__conditionals/index.md
--- title: "Test your skills: Conditionals" slug: Learn/JavaScript/Building_blocks/Test_your_skills:_Conditionals page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Making decisions in your code β€” conditionals](/en-US/docs/Learn/JavaScript/Bu...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/conditionals/index.md
--- title: Making decisions in your code β€” conditionals slug: Learn/JavaScript/Building_blocks/conditionals page-type: learn-module-chapter --- {{LearnSidebar}}{{NextMenu("Learn/JavaScript/Building_blocks/Looping_code", "Learn/JavaScript/Building_blocks")}} In any programming language, the code needs to make decision...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/looping_code/index.md
--- title: Looping code slug: Learn/JavaScript/Building_blocks/Looping_code page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Building_blocks/conditionals","Learn/JavaScript/Building_blocks/Functions", "Learn/JavaScript/Building_blocks")}} Programming languages are very useful f...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/build_your_own_function/index.md
--- title: Build your own function slug: Learn/JavaScript/Building_blocks/Build_your_own_function page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Building_blocks/Functions","Learn/JavaScript/Building_blocks/Return_values", "Learn/JavaScript/Building_blocks")}} With most of the...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/functions/index.md
--- title: Functions β€” reusable blocks of code slug: Learn/JavaScript/Building_blocks/Functions page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Building_blocks/Looping_code","Learn/JavaScript/Building_blocks/Build_your_own_function", "Learn/JavaScript/Building_blocks")}} Anoth...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/return_values/index.md
--- title: Function return values slug: Learn/JavaScript/Building_blocks/Return_values page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Building_blocks/Build_your_own_function","Learn/JavaScript/Building_blocks/Events", "Learn/JavaScript/Building_blocks")}} There's one last ess...
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data/mdn-content/files/en-us/learn/javascript/building_blocks
data/mdn-content/files/en-us/learn/javascript/building_blocks/test_your_skills_colon__functions/index.md
--- title: "Test your skills: Functions" slug: Learn/JavaScript/Building_blocks/Test_your_skills:_Functions page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [Functions β€” reusable blocks of code](/en-US/docs/Learn/JavaScript/Building_blocks/F...
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data/mdn-content/files/en-us/learn/javascript
data/mdn-content/files/en-us/learn/javascript/asynchronous/index.md
--- title: Asynchronous JavaScript slug: Learn/JavaScript/Asynchronous page-type: learn-module --- {{LearnSidebar}} In this module, we take a look at {{Glossary("asynchronous")}} {{Glossary("JavaScript")}}, why it is important, and how it can be used to effectively handle potential blocking operations, such as fetchi...
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data/mdn-content/files/en-us/learn/javascript/asynchronous
data/mdn-content/files/en-us/learn/javascript/asynchronous/sequencing_animations/index.md
--- title: Sequencing animations slug: Learn/JavaScript/Asynchronous/Sequencing_animations page-type: learn-module-assessment --- {{LearnSidebar}}{{PreviousMenu("Learn/JavaScript/Asynchronous/Introducing_workers", "Learn/JavaScript/Asynchronous")}} In this assessment you'll update a page to play a series of animation...
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data/mdn-content/files/en-us/learn/javascript/asynchronous
data/mdn-content/files/en-us/learn/javascript/asynchronous/promises/index.md
--- title: How to use promises slug: Learn/JavaScript/Asynchronous/Promises page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Asynchronous/Introducing", "Learn/JavaScript/Asynchronous/Implementing_a_promise-based_API", "Learn/JavaScript/Asynchronous")}} **Promises** are the foun...
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data/mdn-content/files/en-us/learn/javascript/asynchronous
data/mdn-content/files/en-us/learn/javascript/asynchronous/introducing_workers/index.md
--- title: Introducing workers slug: Learn/JavaScript/Asynchronous/Introducing_workers page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Asynchronous/Implementing_a_promise-based_API", "Learn/JavaScript/Asynchronous/Sequencing_animations", "Learn/JavaScript/Asynchronous")}} In t...
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data/mdn-content/files/en-us/learn/javascript/asynchronous
data/mdn-content/files/en-us/learn/javascript/asynchronous/introducing/index.md
--- title: Introducing asynchronous JavaScript slug: Learn/JavaScript/Asynchronous/Introducing page-type: learn-module-chapter --- {{LearnSidebar}}{{NextMenu("Learn/JavaScript/Asynchronous/Promises", "Learn/JavaScript/Asynchronous")}} In this article, we'll explain what asynchronous programming is, why we need it, an...
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data/mdn-content/files/en-us/learn/javascript/asynchronous
data/mdn-content/files/en-us/learn/javascript/asynchronous/implementing_a_promise-based_api/index.md
--- title: How to implement a promise-based API slug: Learn/JavaScript/Asynchronous/Implementing_a_promise-based_API page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/JavaScript/Asynchronous/Promises", "Learn/JavaScript/Asynchronous/Introducing_workers", "Learn/JavaScript/Asynchronous")}} ...
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data/mdn-content/files/en-us/learn
data/mdn-content/files/en-us/learn/learning_and_getting_help/index.md
--- title: Learning and getting help slug: Learn/Learning_and_getting_help page-type: guide --- {{learnsidebar}} It is great that you are putting some time into learning a new set of skills, but there are good practices to employ that will make your learning more effective. There also are times when you'll get stuck ...
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data/mdn-content/files/en-us/learn
data/mdn-content/files/en-us/learn/front-end_web_developer/index.md
--- title: Front-end web developer slug: Learn/Front-end_web_developer page-type: learn-topic --- {{learnsidebar}} Welcome to our front-end web developer learning pathway! Here we provide you with a structured course that will teach you all you need to know to become a front-end web developer. Work through each sect...
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data/mdn-content/files/en-us/learn
data/mdn-content/files/en-us/learn/accessibility/index.md
--- title: Accessibility slug: Learn/Accessibility page-type: learn-module --- {{LearnSidebar}} Learning some HTML, CSS, and JavaScript is useful if you want to become a web developer. Beyond mechanical use, it's important to learn how to use these technologies **responsibly** so that all readers might use your creat...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/what_is_accessibility/index.md
--- title: What is accessibility? slug: Learn/Accessibility/What_is_accessibility page-type: learn-module-chapter --- {{LearnSidebar}}{{NextMenu("Learn/Accessibility/HTML", "Learn/Accessibility")}} This article starts the module off with a good look at what accessibility is β€” this overview includes what groups of peo...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/html/index.md
--- title: "HTML: A good basis for accessibility" slug: Learn/Accessibility/HTML page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/Accessibility/What_is_Accessibility","Learn/Accessibility/CSS_and_JavaScript", "Learn/Accessibility")}} A great deal of web content can be made accessible just...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/mobile/index.md
--- title: Mobile accessibility slug: Learn/Accessibility/Mobile page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/Accessibility/Multimedia","Learn/Accessibility/Accessibility_troubleshooting", "Learn/Accessibility")}} With web access on mobile devices being so popular and renowned platfor...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/multimedia/index.md
--- title: Accessible multimedia slug: Learn/Accessibility/Multimedia page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/Accessibility/WAI-ARIA_basics","Learn/Accessibility/Mobile", "Learn/Accessibility")}} Another category of content that can create accessibility problems is multimedia. Vi...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/accessibility_troubleshooting/index.md
--- title: "Assessment: Accessibility troubleshooting" slug: Learn/Accessibility/Accessibility_troubleshooting page-type: learn-module-assessment --- {{LearnSidebar}}{{PreviousMenu("Learn/Accessibility/Mobile", "Learn/Accessibility")}} In the assessment for this module, we present to you a simple site with a number o...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/css_and_javascript/index.md
--- title: CSS and JavaScript accessibility best practices slug: Learn/Accessibility/CSS_and_JavaScript page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/Accessibility/HTML","Learn/Accessibility/WAI-ARIA_basics", "Learn/Accessibility")}} CSS and JavaScript, when used properly, also have th...
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data/mdn-content/files/en-us/learn/accessibility/css_and_javascript
data/mdn-content/files/en-us/learn/accessibility/css_and_javascript/test_your_skills_colon__css_and_javascript_accessibility/index.md
--- title: "Test your skills: CSS and JavaScript accessibility" slug: Learn/Accessibility/CSS_and_JavaScript/Test_your_skills:_CSS_and_JavaScript_accessibility page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [CSS and JavaScript accessibilit...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/wai-aria_basics/index.md
--- title: WAI-ARIA basics slug: Learn/Accessibility/WAI-ARIA_basics page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/Accessibility/CSS_and_JavaScript","Learn/Accessibility/Multimedia", "Learn/Accessibility")}} Following on from the previous article, sometimes making complex UI controls t...
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data/mdn-content/files/en-us/learn/accessibility/wai-aria_basics
data/mdn-content/files/en-us/learn/accessibility/wai-aria_basics/test_your_skills_colon__wai-aria/index.md
--- title: "Test your skills: WAI-ARIA" slug: Learn/Accessibility/WAI-ARIA_basics/Test_your_skills:_WAI-ARIA page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [WAI-ARIA basics](/en-US/docs/Learn/Accessibility/WAI-ARIA_basics) article. > **No...
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data/mdn-content/files/en-us/learn/accessibility
data/mdn-content/files/en-us/learn/accessibility/test_your_skills_colon__html_accessibility/index.md
--- title: "Test your skills: HTML accessibility" slug: Learn/Accessibility/Test_your_skills:_HTML_accessibility page-type: learn-module-assessment --- {{learnsidebar}} The aim of this skill test is to assess whether you've understood our [HTML: A good basis for accessibility](/en-US/docs/Learn/Accessibility/HTML) ar...
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data/mdn-content/files/en-us/learn
data/mdn-content/files/en-us/learn/css/index.md
--- title: Learn to style HTML using CSS slug: Learn/CSS page-type: learn-topic --- {{LearnSidebar}} Cascading Style Sheets β€” or {{glossary("CSS")}} β€” is the first technology you should start learning after {{glossary("HTML")}}. While HTML is used to define the structure and semantics of your content, CSS is used to ...
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data/mdn-content/files/en-us/learn/css
data/mdn-content/files/en-us/learn/css/styling_text/index.md
--- title: CSS styling text slug: Learn/CSS/Styling_text page-type: learn-module --- {{LearnSidebar}} With the basics of the CSS language covered, the next CSS topic for you to concentrate on is styling text β€” one of the most common things you'll do with CSS. Here we look at text styling fundamentals including settin...
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data/mdn-content/files/en-us/learn/css/styling_text
data/mdn-content/files/en-us/learn/css/styling_text/typesetting_a_homepage/index.md
--- title: Typesetting a community school homepage slug: Learn/CSS/Styling_text/Typesetting_a_homepage page-type: learn-module-assessment --- {{LearnSidebar}}{{PreviousMenu("Learn/CSS/Styling_text/Web_fonts", "Learn/CSS/Styling_text")}} In this assessment, we'll test your understanding of all the text styling techniq...
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data/mdn-content/files/en-us/learn/css/styling_text
data/mdn-content/files/en-us/learn/css/styling_text/fundamentals/index.md
--- title: Fundamental text and font styling slug: Learn/CSS/Styling_text/Fundamentals page-type: learn-module-chapter --- {{LearnSidebar}}{{NextMenu("Learn/CSS/Styling_text/Styling_lists", "Learn/CSS/Styling_text")}} In this article we'll start you on your journey towards mastering text styling with {{glossary("CSS"...
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data/mdn-content/files/en-us/learn/css/styling_text
data/mdn-content/files/en-us/learn/css/styling_text/styling_links/index.md
--- title: Styling links slug: Learn/CSS/Styling_text/Styling_links page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Styling_text/Styling_lists", "Learn/CSS/Styling_text/Web_fonts", "Learn/CSS/Styling_text")}} When styling [links](/en-US/docs/Learn/HTML/Introduction_to_HTML/Creating_h...
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data/mdn-content/files/en-us/learn/css/styling_text
data/mdn-content/files/en-us/learn/css/styling_text/web_fonts/index.md
--- title: Web fonts slug: Learn/CSS/Styling_text/Web_fonts page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Styling_text/Styling_links", "Learn/CSS/Styling_text/Typesetting_a_homepage", "Learn/CSS/Styling_text")}} In the first article of the module, we explored the basic CSS features...
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data/mdn-content/files/en-us/learn/css/styling_text
data/mdn-content/files/en-us/learn/css/styling_text/styling_lists/index.md
--- title: Styling lists slug: Learn/CSS/Styling_text/Styling_lists page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Styling_text/Fundamentals", "Learn/CSS/Styling_text/Styling_links", "Learn/CSS/Styling_text")}} [Lists](/en-US/docs/Learn/HTML/Introduction_to_HTML/HTML_text_fundamenta...
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data/mdn-content/files/en-us/learn/css
data/mdn-content/files/en-us/learn/css/css_layout/index.md
--- title: CSS layout slug: Learn/CSS/CSS_layout page-type: learn-module --- {{LearnSidebar}} At this point, we've looked at CSS fundamentals, how to style text, and how to style and manipulate the boxes that your content sits inside. Now it's time to look at how to correctly arrange your boxes in relation to the vie...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/position_skills/index.md
--- title: "Test your skills: Positioning" slug: Learn/CSS/CSS_layout/Position_skills page-type: learn-module-assessment --- {{LearnSidebar}} The aim of this skill test is to assess whether you understand [positioning in CSS](/en-US/docs/Learn/CSS/CSS_layout/Positioning) using the CSS {{CSSxRef("position")}} property...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/flexbox/index.md
--- title: Flexbox slug: Learn/CSS/CSS_layout/Flexbox page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Normal_Flow", "Learn/CSS/CSS_layout/Grids", "Learn/CSS/CSS_layout")}} [Flexbox](/en-US/docs/Web/CSS/CSS_flexible_box_layout) is a one-dimensional layout method for arrangi...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/responsive_design/index.md
--- title: Responsive design slug: Learn/CSS/CSS_layout/Responsive_Design page-type: learn-module-chapter --- {{learnsidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Multiple-column_Layout", "Learn/CSS/CSS_layout/Media_queries", "Learn/CSS/CSS_layout")}} _Responsive web design_ (RWD) is a web design approach to make...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/floats/index.md
--- title: Floats slug: Learn/CSS/CSS_layout/Floats page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Grids", "Learn/CSS/CSS_layout/Positioning", "Learn/CSS/CSS_layout")}} Originally for floating images inside blocks of text, the {{cssxref("float")}} property became one of t...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/flexbox_skills/index.md
--- title: "Test your skills: Flexbox" slug: Learn/CSS/CSS_layout/Flexbox_skills page-type: learn-module-assessment --- {{LearnSidebar}} The aim of this skill test is to assess whether you understand how [flexbox and flex items](/en-US/docs/Learn/CSS/CSS_layout/Flexbox) behave. Below are four common design patterns t...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/rwd_skills/index.md
--- title: "Test your skills: Responsive web design and media queries" slug: Learn/CSS/CSS_layout/rwd_skills page-type: learn-module-assessment --- {{LearnSidebar}} The aim of this skill test is to assess whether you understand [how to use media queries](/en-US/docs/Learn/CSS/CSS_layout/Media_queries) and get you wor...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/positioning/index.md
--- title: Positioning slug: Learn/CSS/CSS_layout/Positioning page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Floats", "Learn/CSS/CSS_layout/Multiple-column_Layout", "Learn/CSS/CSS_layout")}} Positioning allows you to take elements out of normal document flow and make them...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/floats_skills/index.md
--- title: "Test your skills: Floats" slug: Learn/CSS/CSS_layout/Floats_skills page-type: learn-module-assessment --- {{LearnSidebar}} The aim of this skill test is to assess whether you understand [floats in CSS](/en-US/docs/Learn/CSS/CSS_layout/Floats) using the {{CSSxRef("float")}} and {{CSSxRef("clear")}} propert...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/grid_skills/index.md
--- title: "Test your skills: Grid" slug: Learn/CSS/CSS_layout/Grid_skills page-type: learn-module-assessment --- {{LearnSidebar}} The aim of this skill test is to assess whether you understand how a [grid and grid items](/en-US/docs/Learn/CSS/CSS_layout/Grids) behave. You will be working through several small tasks ...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/supporting_older_browsers/index.md
--- title: Supporting older browsers slug: Learn/CSS/CSS_layout/Supporting_Older_Browsers page-type: learn-module-chapter browser-compat: css.properties.grid-template-columns --- {{LearnSidebar}} {{PreviousMenuNext("Learn/CSS/CSS_layout/Legacy_Layout_methods", "Learn/CSS/CSS_layout/Fundamental_Layout_Comprehension", ...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/fundamental_layout_comprehension/index.md
--- title: Fundamental layout comprehension slug: Learn/CSS/CSS_layout/Fundamental_Layout_Comprehension page-type: learn-module-assessment --- {{LearnSidebar}} {{PreviousMenu("Learn/CSS/CSS_layout/Supporting_Older_Browsers", "Learn/CSS/CSS_layout")}} If you have worked through this module then you will have already c...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/practical_positioning_examples/index.md
--- title: Practical positioning examples slug: Learn/CSS/CSS_layout/Practical_positioning_examples page-type: guide --- {{LearnSidebar}} This article shows how to build some real-world examples to illustrate what kinds of things you can do with positioning. <table> <tbody> <tr> <th scope="row">Prerequis...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/media_queries/index.md
--- title: Beginner's guide to media queries slug: Learn/CSS/CSS_layout/Media_queries page-type: learn-module-chapter --- {{learnsidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Responsive_Design", "Learn/CSS/CSS_layout/Legacy_Layout_Methods", "Learn/CSS/CSS_layout")}} The **CSS Media Query** gives you a way to appl...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/normal_flow/index.md
--- title: Normal Flow slug: Learn/CSS/CSS_layout/Normal_Flow page-type: learn-module-chapter --- {{LearnSidebar}} {{PreviousMenuNext("Learn/CSS/CSS_layout/Introduction", "Learn/CSS/CSS_layout/Flexbox", "Learn/CSS/CSS_layout")}} This article explains normal flow, or the way that webpage elements lay themselves out i...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/multicol_skills/index.md
--- title: "Test your skills: Multicol" slug: Learn/CSS/CSS_layout/Multicol_skills page-type: learn-module-assessment --- {{LearnSidebar}} The aim of this skill test is to assess whether you understand [CSS multiple-column layout](/en-US/docs/Learn/CSS/CSS_layout/Multiple-column_Layout), including the {{CSSxRef("colu...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/legacy_layout_methods/index.md
--- title: Legacy layout methods slug: Learn/CSS/CSS_layout/Legacy_Layout_Methods page-type: learn-module-chapter --- {{LearnSidebar}} {{PreviousMenuNext("Learn/CSS/CSS_layout/Media_queries", "Learn/CSS/CSS_layout/Supporting_Older_Browsers", "Learn/CSS/CSS_layout")}} Grid systems are a very common feature used in CS...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/grids/index.md
--- title: Grids slug: Learn/CSS/CSS_layout/Grids page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Flexbox", "Learn/CSS/CSS_layout/Floats", "Learn/CSS/CSS_layout")}} [CSS grid layout](/en-US/docs/Web/CSS/CSS_grid_layout) is a two-dimensional layout system for the web. It le...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/multiple-column_layout/index.md
--- title: Multiple-column layout slug: Learn/CSS/CSS_layout/Multiple-column_Layout page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Positioning", "Learn/CSS/CSS_layout/Responsive_Design", "Learn/CSS/CSS_layout")}} The multiple-column layout specification provides you with ...
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data/mdn-content/files/en-us/learn/css/css_layout
data/mdn-content/files/en-us/learn/css/css_layout/introduction/index.md
--- title: Introduction to CSS layout slug: Learn/CSS/CSS_layout/Introduction page-type: learn-module-chapter --- {{LearnSidebar}}{{NextMenu("Learn/CSS/CSS_layout/Normal_Flow", "Learn/CSS/CSS_layout")}} This article will recap some of the CSS layout features we've already touched upon in previous modules, such as dif...
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data/mdn-content/files/en-us/learn/css
data/mdn-content/files/en-us/learn/css/howto/index.md
--- title: Use CSS to solve common problems slug: Learn/CSS/Howto page-type: landing-page --- {{LearnSidebar}} This page rounds up questions and answers, and other material on the MDN site that can help you to solve common CSS problems. ## Styling boxes - [How do I add a drop-shadow to an element?](/en-US/docs/Lear...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/generated_content/index.md
--- title: Using CSS generated content slug: Learn/CSS/Howto/Generated_content page-type: learn-faq --- {{LearnSidebar}} This article describes some ways in which you can use CSS to add content when a document is displayed. You modify your stylesheet to add text content or images. One of the important advantages of ...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/fill_a_box_with_an_image/index.md
--- title: How to fill a box with an image without distorting it slug: Learn/CSS/Howto/Fill_a_box_with_an_image page-type: learn-faq --- {{LearnSidebar}} In this guide you can learn a technique for causing an HTML image to completely fill a box. ## Using object-fit When you add an image to a page using the HTML {{h...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/make_box_transparent/index.md
--- title: How to make a box semi-transparent slug: Learn/CSS/Howto/Make_box_transparent page-type: learn-faq --- {{LearnSidebar}} This guide will help you to understand the ways to make a box semi-transparent using CSS. ## Change the opacity of the box and content If you would like the box and all of the contents ...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/highlight_para_after_h1/index.md
--- title: How to highlight a paragraph that comes after a heading slug: Learn/CSS/Howto/Highlight_para_after_h1 page-type: learn-faq --- {{LearnSidebar}} In this guide you can find out how to highlight a paragraph that comes directly after a heading. ## Styling the first paragraph after a heading A common pattern ...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/create_fancy_boxes/index.md
--- title: Create fancy boxes slug: Learn/CSS/Howto/Create_fancy_boxes page-type: learn-faq --- {{LearnSidebar}} CSS boxes are the building blocks of any web page styled with CSS. Making them nice looking is both fun and challenging. It's fun because it's all about turning a design idea into working code; it's challe...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/transition_button/index.md
--- title: How to fade a button on hover slug: Learn/CSS/Howto/Transition_button page-type: learn-faq --- {{LearnSidebar}} In this guide you can find out how to do a gentle fade between two colors when hovering over a button. In our button example, we can change the background of our button by defining a different b...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/highlight_first_line/index.md
--- title: How to highlight the first line of a paragraph slug: Learn/CSS/Howto/Highlight_first_line page-type: learn-faq --- {{LearnSidebar}} In this guide you will find out how to highlight the first line of text in a paragraph, even if you don't know how long that line will be. ## Styling the first line of text ...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/css_faq/index.md
--- title: CSS FAQ slug: Learn/CSS/Howto/CSS_FAQ page-type: learn-faq --- {{LearnSidebar}} In this article, you'll find some frequently-asked questions (FAQs) about CSS, along with answers that may help you on your quest to become a web developer. ## Why doesn't my CSS, which is valid, render correctly? Browsers us...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/center_an_item/index.md
--- title: How to center an item slug: Learn/CSS/Howto/Center_an_item page-type: learn-faq --- {{LearnSidebar}} In this guide you can find out how to center an item inside another element, both horizontally and vertically. ## Center a box To center one box inside another using CSS you will need to use [CSS box alig...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/highlight_first_para/index.md
--- title: How to highlight the first paragraph slug: Learn/CSS/Howto/Highlight_first_para page-type: learn-faq --- {{LearnSidebar}} In this guide you can find out how to highlight the first paragraph inside a container. ## Styling the first paragraph You would like to make the first paragraph larger and bold. You ...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/add_a_shadow/index.md
--- title: How to add a shadow to an element slug: Learn/CSS/Howto/Add_a_shadow page-type: learn-faq --- {{LearnSidebar}} In this guide you can find out how to add a shadow to any box on your page. ## Adding box shadows Shadows are a common design feature that can help elements stand out on your page. In CSS, shado...
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data/mdn-content/files/en-us/learn/css/howto
data/mdn-content/files/en-us/learn/css/howto/add_a_text_shadow/index.md
--- title: How to add a shadow to text slug: Learn/CSS/Howto/Add_a_text_shadow page-type: learn-faq --- {{LearnSidebar}} In this guide you can find out how to add a shadow to any text on your page. ## Adding shadows to text In our [guide to adding a shadow to boxes](/en-US/docs/Learn/CSS/Howto/Add_a_shadow), you ca...
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data/mdn-content/files/en-us/learn/css
data/mdn-content/files/en-us/learn/css/first_steps/index.md
--- title: CSS first steps overview slug: Learn/CSS/First_steps page-type: learn-module --- {{LearnSidebar}} CSS (Cascading Style Sheets) is used to style and lay out web pages β€” for example, to alter the font, color, size, and spacing of your content, split it into multiple columns, or add animations and other decor...
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data/mdn-content/files/en-us/learn/css/first_steps
data/mdn-content/files/en-us/learn/css/first_steps/getting_started/index.md
--- title: Getting started with CSS slug: Learn/CSS/First_steps/Getting_started page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/First_steps/What_is_CSS", "Learn/CSS/First_steps/How_CSS_is_structured", "Learn/CSS/First_steps")}} In this article, we will take a simple HTML document and...
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data/mdn-content/files/en-us/learn/css/first_steps
data/mdn-content/files/en-us/learn/css/first_steps/what_is_css/index.md
--- title: What is CSS? slug: Learn/CSS/First_steps/What_is_CSS page-type: learn-module-chapter --- {{LearnSidebar}}{{NextMenu("Learn/CSS/First_steps/Getting_started", "Learn/CSS/First_steps")}} **{{Glossary("CSS")}}** (Cascading Style Sheets) allows you to create great-looking web pages, but how does it work under t...
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data/mdn-content/files/en-us/learn/css/first_steps
data/mdn-content/files/en-us/learn/css/first_steps/how_css_is_structured/index.md
--- title: How CSS is structured slug: Learn/CSS/First_steps/How_CSS_is_structured page-type: learn-module-chapter --- {{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/First_steps/Getting_started", "Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}} Now that you are beginning to understand the purpose and ...
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data/mdn-content/files/en-us/learn/css/first_steps
data/mdn-content/files/en-us/learn/css/first_steps/styling_a_biography_page/index.md
--- title: Styling a biography page slug: Learn/CSS/First_steps/Styling_a_biography_page page-type: learn-module-assessment --- {{LearnSidebar}}{{PreviousMenu("Learn/CSS/First_steps/How_CSS_works", "Learn/CSS/First_steps")}} With the things you have learned in the last few lessons you should find that you can format ...
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data/mdn-content/files/en-us/learn/css/first_steps
data/mdn-content/files/en-us/learn/css/first_steps/how_css_works/index.md
--- title: How CSS works slug: Learn/CSS/First_steps/How_CSS_works page-type: learn-module-chapter --- {{LearnSidebar}} {{PreviousMenuNext("Learn/CSS/First_steps/How_CSS_is_structured", "Learn/CSS/First_steps/Styling_a_biography_page", "Learn/CSS/First_steps")}} We have learned the basics of CSS, what it is for and h...
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