repo_id stringlengths 22 103 | file_path stringlengths 41 147 | content stringlengths 181 193k | __index_level_0__ int64 0 0 |
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data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/-moz-force-broken-image-icon/index.md | ---
title: "-moz-force-broken-image-icon"
slug: Web/CSS/-moz-force-broken-image-icon
page-type: css-property
status:
- deprecated
- non-standard
browser-compat: css.properties.-moz-force-broken-image-icon
---
{{Non-standard_header}}{{CSSRef}}{{Deprecated_Header}}
The **`-moz-force-broken-image-icon`** extended CS... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/calc-sum/index.md | ---
title: <calc-sum>
slug: Web/CSS/calc-sum
page-type: css-type
browser-compat: css.types.calc-sum
---
{{CSSRef}}
The **`<calc-sum>`** [CSS](/en-US/docs/Web/CSS) [data type](/en-US/docs/Web/CSS/CSS_Types) represents an expression which performs a calculation in any [CSS math function](/en-US/docs/Web/CSS/CSS_Functio... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/backdrop-filter/index.md | ---
title: backdrop-filter
slug: Web/CSS/backdrop-filter
page-type: css-property
browser-compat: css.properties.backdrop-filter
---
{{CSSRef}}
The **`backdrop-filter`** [CSS](/en-US/docs/Web/CSS) property lets you apply graphical effects such as blurring or color shifting to the area behind an element. Because it app... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/font-variant-ligatures/index.md | ---
title: font-variant-ligatures
slug: Web/CSS/font-variant-ligatures
page-type: css-property
browser-compat: css.properties.font-variant-ligatures
---
{{CSSRef}}
The **`font-variant-ligatures`** CSS property controls which {{Glossary("ligature", "ligatures")}} and {{Glossary("contextual forms")}} are used in textua... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/relative-size/index.md | ---
title: <relative-size>
slug: Web/CSS/relative-size
page-type: css-type
spec-urls: https://drafts.csswg.org/css-fonts/#valdef-font-size-relative-size
---
{{CSSRef}}
The **`<relative-size>`** [CSS](/en-US/docs/Web/CSS) [data type](/en-US/docs/Web/CSS/CSS_Types) describes relative size keywords. The `<relative-size>... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/viewport_concepts/index.md | ---
title: Viewport concepts
slug: Web/CSS/Viewport_concepts
page-type: guide
---
{{CSSRef}}
This article explains the concept of the viewport — what it is, its impact in terms of CSS, SVG, and mobile devices — and differentiates between the visual viewport and the layout viewport.
## What is a viewport?
A viewport... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_doublecolon_-webkit-search-cancel-button/index.md | ---
title: "::-webkit-search-cancel-button"
slug: Web/CSS/::-webkit-search-cancel-button
page-type: css-pseudo-element
status:
- non-standard
browser-compat: css.selectors.-webkit-search-cancel-button
---
{{CSSRef}}{{Non-standard_header}}
The **`::-webkit-search-cancel-button`** CSS [pseudo-element](/en-US/docs/Web... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/left/index.md | ---
title: left
slug: Web/CSS/left
page-type: css-property
browser-compat: css.properties.left
---
{{CSSRef}}
The **`left`** [CSS](/en-US/docs/Web/CSS) property participates in specifying the horizontal position of a [positioned element](/en-US/docs/Web/CSS/position). It has no effect on non-positioned elements.
{{E... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/@keyframes/index.md | ---
title: "@keyframes"
slug: Web/CSS/@keyframes
page-type: css-at-rule
browser-compat: css.at-rules.keyframes
---
{{CSSRef}}
The **`@keyframes`** CSS [at-rule](/en-US/docs/Web/CSS/At-rule) controls the intermediate steps in a CSS animation sequence by defining styles for keyframes (or waypoints) along the animation ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/inset-inline/index.md | ---
title: inset-inline
slug: Web/CSS/inset-inline
page-type: css-shorthand-property
browser-compat: css.properties.inset-inline
---
{{CSSRef}}
The **`inset-inline`** [CSS](/en-US/docs/Web/CSS) property defines the logical start and end offsets of an element in the inline direction, which maps to physical offsets dep... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/container/index.md | ---
title: container
slug: Web/CSS/container
page-type: css-shorthand-property
browser-compat: css.properties.container
---
{{CSSRef}}
The **container** [shorthand](/en-US/docs/Web/CSS/Shorthand_properties) [CSS](/en-US/docs/Web/CSS) property establishes the element as a query container and specifies the name and typ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/border-left/index.md | ---
title: border-left
slug: Web/CSS/border-left
page-type: css-shorthand-property
browser-compat: css.properties.border-left
---
{{CSSRef}}
The **`border-left`** [shorthand](/en-US/docs/Web/CSS/Shorthand_properties) [CSS](/en-US/docs/Web/CSS) property sets all the properties of an element's left [border](/en-US/docs... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/initial_value/index.md | ---
title: Initial value
slug: Web/CSS/initial_value
page-type: guide
spec-urls: https://www.w3.org/TR/CSS22/cascade.html#specified-value
---
{{CSSRef}}
The **initial value** of a [CSS](/en-US/docs/Web/CSS) property is its default value, as listed in its definition table in the specification. The usage of the initial... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/justify-self/index.md | ---
title: justify-self
slug: Web/CSS/justify-self
page-type: css-property
browser-compat: css.properties.justify-self
---
{{CSSRef}}
The [CSS](/en-US/docs/Web/CSS) **`justify-self`** property sets the way a box is justified inside its alignment container along the appropriate axis.
{{EmbedInteractiveExample("pages/... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/grid-template-rows/index.md | ---
title: grid-template-rows
slug: Web/CSS/grid-template-rows
page-type: css-property
browser-compat: css.properties.grid-template-rows
---
{{CSSRef}}
The **`grid-template-rows`** CSS property defines the line names and track sizing functions of the {{glossary("grid_row", "grid rows")}}.
{{EmbedInteractiveExample("... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_writing_modes/index.md | ---
title: CSS writing modes
slug: Web/CSS/CSS_writing_modes
page-type: css-module
spec-urls: https://drafts.csswg.org/css-writing-modes/
---
{{CSSRef}}
The **CSS writing modes** module defines various international writing modes, such as left-to-right (e.g., used by Latin and Indic scripts), right-to-left (e.g., use... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_positioned_layout/index.md | ---
title: CSS positioned layout
slug: Web/CSS/CSS_positioned_layout
page-type: css-module
spec-urls: https://drafts.csswg.org/css-position/
---
{{CSSRef}}
The **CSS positioned layout** module defines how to position elements on a web page.
## Reference
### Properties
- {{cssxref("top")}}
- {{cssxref("right")}}
- ... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/index.md | ---
title: Understanding z-index
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index
page-type: guide
---
{{CSSRef}}
In the most basic cases, [HTML](/en-US/docs/Web/HTML) pages can be considered two-dimensional, because text, images, and other elements are arranged on the page without overlapping. In this case,... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/stacking_context/index.md | ---
title: Stacking context
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index/Stacking_context
page-type: guide
---
{{CSSRef}}
**Stacking context** is a three-dimensional conceptualization of HTML elements along an imaginary z-axis relative to the user, who is assumed to be facing the viewport or the webpage.... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/stacking_without_z-index/index.md | ---
title: Stacking without the z-index property
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index/Stacking_without_z-index
page-type: guide
---
{{CSSRef}}
When the {{cssxref("z-index")}} property is not specified on any element, elements are stacked in the following order (from bottom to top):
1. The backgr... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/stacking_context_example_1/index.md | ---
title: Stacking context example 1
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index/Stacking_context_example_1
page-type: guide
---
{{CSSRef}}
## Description
Let's start with a basic example. In the root stacking context, there are two relatively positioned `<div>` elements (DIV #1 and DIV #3) without `z... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/stacking_floating_elements/index.md | ---
title: Stacking floating elements
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index/Stacking_floating_elements
page-type: guide
---
{{CSSRef}}
For floating elements, the stacking order is a bit different. Floating elements are placed between non-positioned elements and positioned elements:
1. The backgro... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/using_z-index/index.md | ---
title: Using z-index
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index/Using_z-index
page-type: guide
---
{{CSSRef}}
The first article of this guide, [Stacking without the z-index property](/en-US/docs/Web/CSS/CSS_positioned_layout/Understanding_z-index/Stacking_without_z-index), explains how stacking is ... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/stacking_context_example_2/index.md | ---
title: Stacking context example 2
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index/Stacking_context_example_2
page-type: guide
---
{{CSSRef}}
## Description
This is a very simple example, but it is the key for understanding the concept of _stacking context_. There are the same four DIVs of the previous ... | 0 |
data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index | data/mdn-content/files/en-us/web/css/css_positioned_layout/understanding_z-index/stacking_context_example_3/index.md | ---
title: Stacking context example 3
slug: Web/CSS/CSS_positioned_layout/Understanding_z-index/Stacking_context_example_3
page-type: guide
---
{{CSSRef}}
## Description
This last example shows problems that arise when mixing several positioned elements in a multi-level HTML hierarchy and when `z-index` values are a... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/list-style-type/index.md | ---
title: list-style-type
slug: Web/CSS/list-style-type
page-type: css-property
browser-compat: css.properties.list-style-type
---
{{CSSRef}}
The **`list-style-type`** [CSS](/en-US/docs/Web/CSS) property sets the marker (such as a disc, character, or custom counter style) of a list item element.
{{EmbedInteractiveE... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/font-variant-position/index.md | ---
title: font-variant-position
slug: Web/CSS/font-variant-position
page-type: css-property
browser-compat: css.properties.font-variant-position
---
{{CSSRef}}
The **`font-variant-position`** CSS property controls the use of alternate, smaller glyphs that are positioned as superscript or subscript.
The glyphs are p... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_colon_-moz-locale-dir_ltr/index.md | ---
title: ":-moz-locale-dir(ltr)"
slug: Web/CSS/:-moz-locale-dir_ltr
page-type: css-pseudo-class
status:
- non-standard
---
{{CSSRef}}{{Non-standard_header}}
The **`:-moz-locale-dir(ltr)`** [CSS](/en-US/docs/Web/CSS) [pseudo-class](/en-US/docs/Web/CSS/Pseudo-classes) is a [Mozilla extension](/en-US/docs/Web/CSS/Mo... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_scrollbars_styling/index.md | ---
title: CSS scrollbars styling
slug: Web/CSS/CSS_scrollbars_styling
page-type: css-module
browser-compat:
- css.properties.scrollbar-color
- css.properties.scrollbar-width
spec-urls: https://drafts.csswg.org/css-scrollbars/
---
{{CSSRef}}
The **CSS scrollbars styling** module defines properties that you can us... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/margin-inline-start/index.md | ---
title: margin-inline-start
slug: Web/CSS/margin-inline-start
page-type: css-property
browser-compat: css.properties.margin-inline-start
---
{{CSSRef}}
The **`margin-inline-start`** [CSS](/en-US/docs/Web/CSS) property defines the logical inline start margin of an element, which maps to a physical margin depending ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/isolation/index.md | ---
title: isolation
slug: Web/CSS/isolation
page-type: css-property
browser-compat: css.properties.isolation
---
{{CSSRef}}
The **`isolation`** [CSS](/en-US/docs/Web/CSS) property determines whether an element must create a new {{glossary("stacking context")}}.
{{EmbedInteractiveExample("pages/css/isolation.html")}... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/calc/index.md | ---
title: calc()
slug: Web/CSS/calc
page-type: css-function
browser-compat: css.types.calc
---
{{CSSRef}}
The **`calc()`** [CSS](/en-US/docs/Web/CSS) [function](/en-US/docs/Web/CSS/CSS_Functions) lets you perform calculations when specifying CSS property values. It can be used with {{cssxref("<length>")}}, {{c... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/margin-trim/index.md | ---
title: margin-trim
slug: Web/CSS/margin-trim
page-type: css-property
status:
- experimental
browser-compat: css.properties.margin-trim
---
{{CSSRef}}{{SeeCompatTable}}
The `margin-trim` property allows the container to trim the margins of its children where they adjoin the container's edges.
## Syntax
```css
... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/@font-feature-values/index.md | ---
title: "@font-feature-values"
slug: Web/CSS/@font-feature-values
page-type: css-at-rule
browser-compat: css.at-rules.font-feature-values
---
{{CSSRef}}
The **`@font-feature-values`** [CSS](/en-US/docs/Web/CSS) [at-rule](/en-US/docs/Web/CSS/At-rule) lets you use a common name in the {{cssxref("font-variant-alterna... | 0 |
data/mdn-content/files/en-us/web/css/@font-feature-values | data/mdn-content/files/en-us/web/css/@font-feature-values/font-display/index.md | ---
title: font-display
slug: Web/CSS/@font-feature-values/font-display
page-type: css-at-rule-descriptor
browser-compat: css.at-rules.font-feature-values.font-display
spec-urls: https://drafts.csswg.org/css-fonts/#descdef-font-feature-values-font-display
---
{{CSSRef}}
The **`font-display`** descriptor for the {{css... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/content/index.md | ---
title: content
slug: Web/CSS/content
page-type: css-property
browser-compat: css.properties.content
---
{{CSSRef}}
The **`content`** [CSS](/en-US/docs/Web/CSS) property replaces content with a generated value. It can be used to define what is rendered inside an element or pseudo-element. For elements, the `conten... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/content/mdn.svg | <svg xmlns="http://www.w3.org/2000/svg" height="200" width="226.855"><defs><linearGradient gradientTransform="translate(-353.18 -4908.622) scale(6.99647)" gradientUnits="userSpaceOnUse" id="a" y2="701.6" x2="66.7" y1="730.2" x1="66.7"><stop offset="0" style="stop-color:#2075bc;stop-opacity:1"/><stop offset="1" style="s... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/scroll-margin/index.md | ---
title: scroll-margin
slug: Web/CSS/scroll-margin
page-type: css-shorthand-property
browser-compat: css.properties.scroll-margin
---
{{CSSRef}}
The **`scroll-margin`** [shorthand property](/en-US/docs/Web/CSS/Shorthand_properties) sets all of the scroll margins of an element at once, assigning values much like the... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders/index.md | ---
title: CSS backgrounds and borders
slug: Web/CSS/CSS_backgrounds_and_borders
page-type: css-module
spec-urls: https://drafts.csswg.org/css-backgrounds/
---
{{CSSRef}}
The **CSS backgrounds and borders** module provides properties for adding borders, rounded corners, and box shadows to elements.
You can add diffe... | 0 |
data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders | data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders/resizing_background_images/index.md | ---
title: Resizing background images with background-size
slug: Web/CSS/CSS_backgrounds_and_borders/Resizing_background_images
page-type: guide
---
{{CSSRef}}
The **{{cssxref("background-size")}}** CSS property lets you resize the background image of an element, overriding the default behavior of tiling the image at... | 0 |
data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders | data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders/box-shadow_generator/index.md | ---
title: Box-shadow generator
slug: Web/CSS/CSS_backgrounds_and_borders/Box-shadow_generator
page-type: guide
---
{{CSSRef}}
This tool lets you construct CSS {{cssxref("box-shadow")}} effects, to add box shadow effects to your CSS objects.
{{EmbedGHLiveSample("css-examples/tools/box-shadow-generator/", '100%', 900... | 0 |
data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders | data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders/border-image_generator/index.md | ---
title: Border-image generator
slug: Web/CSS/CSS_backgrounds_and_borders/Border-image_generator
page-type: guide
---
{{CSSRef}}
This tool can be used to generate CSS {{cssxref("border-image")}} values.
{{EmbedGHLiveSample("css-examples/tools/border-image-generator/", '100%', 1200)}}
## See also
- [Border-radius... | 0 |
data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders | data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders/border-radius_generator/index.md | ---
title: Border-radius generator
slug: Web/CSS/CSS_backgrounds_and_borders/Border-radius_generator
page-type: guide
---
{{CSSRef}}
This tool can be used to generate CSS {{cssxref("border-radius")}} effects.
{{EmbedGHLiveSample("css-examples/tools/border-radius-generator/", '100%', 900)}}
## See also
- [Border-im... | 0 |
data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders | data/mdn-content/files/en-us/web/css/css_backgrounds_and_borders/using_multiple_backgrounds/index.md | ---
title: Using multiple backgrounds
slug: Web/CSS/CSS_backgrounds_and_borders/Using_multiple_backgrounds
page-type: guide
---
{{CSSRef}}
You can apply **multiple backgrounds** to elements. These are layered atop one another with the first background you provide on top and the last background listed in the back. Onl... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/text-decoration-style/index.md | ---
title: text-decoration-style
slug: Web/CSS/text-decoration-style
page-type: css-property
browser-compat: css.properties.text-decoration-style
---
{{CSSRef}}
The **`text-decoration-style`** [CSS](/en-US/docs/Web/CSS) property sets the style of the lines specified by {{ cssxref("text-decoration-line") }}. The style... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_colon_user-valid/index.md | ---
title: ":user-valid"
slug: Web/CSS/:user-valid
page-type: css-pseudo-class
browser-compat: css.selectors.user-valid
---
{{CSSRef}}
The **`:user-valid`** CSS [pseudo-class](/en-US/docs/Web/CSS/Pseudo-classes) represents any validated form element whose value validates correctly based on its [validation constraints... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/id_selectors/index.md | ---
title: ID selectors
slug: Web/CSS/ID_selectors
page-type: css-selector
browser-compat: css.selectors.id
---
{{CSSRef}}
The CSS **ID selector** matches an element based on the value of the element's [`id`](/en-US/docs/Web/HTML/Global_attributes/id) attribute. In order for the element to be selected, its `id` attri... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/contain-intrinsic-width/index.md | ---
title: contain-intrinsic-width
slug: Web/CSS/contain-intrinsic-width
page-type: css-property
browser-compat: css.properties.contain-intrinsic-width
---
{{CSSRef}}
The **`contain-intrinsic-width`** [CSS](/en-US/docs/Web/CSS) property sets the width of an element that a browser will use for layout when the element ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/height/index.md | ---
title: height
slug: Web/CSS/height
page-type: css-property
browser-compat: css.properties.height
---
{{CSSRef}}
The **`height`** CSS property specifies the height of an element. By default, the property defines the height of the [content area](/en-US/docs/Web/CSS/CSS_box_model/Introduction_to_the_CSS_box_model#co... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/used_value/index.md | ---
title: Used value
slug: Web/CSS/used_value
page-type: guide
spec-urls: https://www.w3.org/TR/CSS22/cascade.html#used-value
---
{{CSSRef}}
The **used value** of a [CSS](/en-US/docs/Web/CSS) property is its value after all calculations have been performed on the [computed value](/en-US/docs/Web/CSS/computed_value).... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_conditional_rules/index.md | ---
title: CSS conditional rules
slug: Web/CSS/CSS_conditional_rules
page-type: css-module
spec-urls:
- https://www.w3.org/TR/css-conditional-5/
- https://www.w3.org/TR/css-conditional-4/
- https://www.w3.org/TR/css-conditional-3/
---
{{CSSRef}}
The **CSS conditional rules** module defines CSS media and support... | 0 |
data/mdn-content/files/en-us/web/css/css_conditional_rules | data/mdn-content/files/en-us/web/css/css_conditional_rules/using_feature_queries/index.md | ---
title: Using feature queries
slug: Web/CSS/CSS_conditional_rules/Using_feature_queries
page-type: guide
---
{{CSSRef}}
**Feature queries** are conditional group rules that test whether the user agent supports or doesn't support one or more CSS features, such as CSS properties and property values. Feature queries ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_doublecolon_-moz-range-track/index.md | ---
title: "::-moz-range-track"
slug: Web/CSS/::-moz-range-track
page-type: css-pseudo-element
status:
- non-standard
browser-compat: css.selectors.-moz-range-track
---
{{CSSRef}}{{Non-standard_header}}
The **`::-moz-range-track`** [CSS](/en-US/docs/Web/CSS) [pseudo-element](/en-US/docs/Web/CSS/Pseudo-elements) is ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/padding-inline-start/index.md | ---
title: padding-inline-start
slug: Web/CSS/padding-inline-start
page-type: css-property
browser-compat: css.properties.padding-inline-start
---
{{CSSRef}}
The **`padding-inline-start`** [CSS](/en-US/docs/Web/CSS) property defines the logical inline start padding of an element, which maps to a physical padding depe... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/padding/index.md | ---
title: padding
slug: Web/CSS/padding
page-type: css-shorthand-property
browser-compat: css.properties.padding
---
{{CSSRef}}
The **`padding`** [CSS](/en-US/docs/Web/CSS) [shorthand property](/en-US/docs/Web/CSS/Shorthand_properties) sets the [padding area](/en-US/docs/Web/CSS/CSS_box_model/Introduction_to_the_CSS... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/aspect-ratio/index.md | ---
title: aspect-ratio
slug: Web/CSS/aspect-ratio
page-type: css-property
browser-compat: css.properties.aspect-ratio
---
{{CSSRef}}
The **`aspect-ratio`** [CSS](/en-US/docs/Web/CSS) property allows you to define the desired width-to-height ratio of an element's box. This means that even if the parent container or v... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/@layer/index.md | ---
title: "@layer"
slug: Web/CSS/@layer
page-type: css-at-rule
browser-compat: css.at-rules.layer
---
{{CSSRef}}
The **`@layer`** [CSS](/en-US/docs/Web/CSS) [at-rule](/en-US/docs/Web/CSS/At-rule) is used to declare a cascade layer and can also be used to define the order of precedence in case of multiple cascade lay... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/break-after/index.md | ---
title: break-after
slug: Web/CSS/break-after
page-type: css-property
browser-compat: css.properties.break-after
---
{{CSSRef}}
The **`break-after`** [CSS](/en-US/docs/Web/CSS) property sets how page, column, or region breaks should behave after a generated box. If there is no generated box, the property is ignore... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/overscroll-behavior-inline/index.md | ---
title: overscroll-behavior-inline
slug: Web/CSS/overscroll-behavior-inline
page-type: css-property
browser-compat: css.properties.overscroll-behavior-inline
---
{{CSSRef}}
The **`overscroll-behavior-inline`** CSS property sets the browser's behavior when the inline direction boundary of a scrolling area is reache... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_colon_first-child/index.md | ---
title: ":first-child"
slug: Web/CSS/:first-child
page-type: css-pseudo-class
browser-compat: css.selectors.first-child
---
{{CSSRef}}
The **`:first-child`** [CSS](/en-US/docs/Web/CSS) [pseudo-class](/en-US/docs/Web/CSS/Pseudo-classes) represents the first element among a group of sibling elements.
{{EmbedInterac... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/font-variant-east-asian/index.md | ---
title: font-variant-east-asian
slug: Web/CSS/font-variant-east-asian
page-type: css-property
browser-compat: css.properties.font-variant-east-asian
---
{{CSSRef}}
The **`font-variant-east-asian`** CSS property controls the use of alternate glyphs for East Asian scripts, like Japanese and Chinese.
{{EmbedInteract... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/font-size-adjust/index.md | ---
title: font-size-adjust
slug: Web/CSS/font-size-adjust
page-type: css-property
browser-compat: css.properties.font-size-adjust
---
{{CSSRef}}
The **`font-size-adjust`** [CSS](/en-US/docs/Web/CSS) property provides a way to modify the size of lowercase letters relative to the size of uppercase letters, which defin... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/inset-block-end/index.md | ---
title: inset-block-end
slug: Web/CSS/inset-block-end
page-type: css-property
browser-compat: css.properties.inset-block-end
---
{{CSSRef}}
The **`inset-block-end`** [CSS](/en-US/docs/Web/CSS) property defines the logical block end offset of an element, which maps to a physical inset depending on the element's wri... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_colon_buffering/index.md | ---
title: ":buffering"
slug: Web/CSS/:buffering
page-type: css-pseudo-class
browser-compat: css.selectors.buffering
---
{{CSSRef}}
The **`:buffering`** [CSS](/en-US/docs/Web/CSS) [pseudo-class](/en-US/docs/Web/CSS/Pseudo-classes) selector represents an element that is playable, such as {{htmlelement("audio")}} or {{... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/all/index.md | ---
title: all
slug: Web/CSS/all
page-type: css-shorthand-property
browser-compat: css.properties.all
---
{{CSSRef}}
The **`all`** [shorthand](/en-US/docs/Web/CSS/Shorthand_properties) [CSS](/en-US/docs/Web/CSS) property resets all of an element's properties except {{cssxref("unicode-bidi")}}, {{cssxref("direction")}... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/mozilla_extensions/index.md | ---
title: Mozilla vendor-prefixed CSS extensions
slug: Web/CSS/Mozilla_Extensions
page-type: landing-page
status:
- non-standard
---
{{CSSRef}}
Firefox supports a number of _Mozilla extensions to [CSS](/en-US/docs/Web/CSS)_, including properties, values, pseudo-elements and pseudo-classes, at-rules, and media quer... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/scroll-margin-block-start/index.md | ---
title: scroll-margin-block-start
slug: Web/CSS/scroll-margin-block-start
page-type: css-property
browser-compat: css.properties.scroll-margin-block-start
---
{{CSSRef}}
The `scroll-margin-block-start` property defines the margin of the scroll snap area at the start of the block dimension that is used for snapping... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/will-change/index.md | ---
title: will-change
slug: Web/CSS/will-change
page-type: css-property
browser-compat: css.properties.will-change
---
{{CSSRef}}
The **`will-change`** [CSS](/en-US/docs/Web/CSS) property hints to browsers how an element is expected to change. Browsers may set up optimizations before an element is actually changed. ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/var/index.md | ---
title: var()
slug: Web/CSS/var
page-type: css-function
browser-compat: css.properties.custom-property.var
---
{{CSSRef}}
The **`var()`** [CSS](/en-US/docs/Web/CSS) [function](/en-US/docs/Web/CSS/CSS_Functions) can be used to insert the value of a [custom property](/en-US/docs/Web/CSS/--*) (sometimes called a "CSS... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/overflow-clip-margin/index.md | ---
title: overflow-clip-margin
slug: Web/CSS/overflow-clip-margin
page-type: css-property
browser-compat: css.properties.overflow-clip-margin
---
{{CSSRef}}
The **`overflow-clip-margin`** [CSS](/en-US/docs/Web/CSS) property determines how far outside its bounds an element with [`overflow: clip`](/en-US/docs/Web/CSS/... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/border-left-style/index.md | ---
title: border-left-style
slug: Web/CSS/border-left-style
page-type: css-property
browser-compat: css.properties.border-left-style
---
{{CSSRef}}
The **`border-left-style`** [CSS](/en-US/docs/Web/CSS) property sets the line style of an element's left {{cssxref("border")}}.
{{EmbedInteractiveExample("pages/css/bor... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/-moz-user-focus/index.md | ---
title: "-moz-user-focus"
slug: Web/CSS/-moz-user-focus
page-type: css-property
status:
- deprecated
- non-standard
browser-compat: css.properties.-moz-user-focus
---
{{CSSRef}} {{deprecated_header}}{{non-standard_header}}
The **`-moz-user-focus`** [CSS](/en-US/docs/Web/CSS) property is used to indicate whethe... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/hyphenate-character/index.md | ---
title: hyphenate-character
slug: Web/CSS/hyphenate-character
page-type: css-property
browser-compat: css.properties.hyphenate-character
---
{{CSSRef}}
The **`hyphenate-character`** [CSS](/en-US/docs/Web/CSS) property sets the character (or string) used at the end of a line before a hyphenation break.
Both automa... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_scroll-driven_animations/index.md | ---
title: CSS scroll-driven animations
slug: Web/CSS/CSS_scroll-driven_animations
page-type: css-module
spec-urls:
- https://drafts.csswg.org/scroll-animations-1/
- https://drafts.csswg.org/css-animations-2/
- https://drafts.csswg.org/web-animations-2/
---
{{CSSRef}}
The **CSS scroll-driven animations** module... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/overscroll-behavior/index.md | ---
title: overscroll-behavior
slug: Web/CSS/overscroll-behavior
page-type: css-shorthand-property
browser-compat: css.properties.overscroll-behavior
---
{{CSSRef}}
The **`overscroll-behavior`** CSS property sets what a browser does when reaching the boundary of a scrolling area.
{{EmbedInteractiveExample("pages/css... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_doublecolon_-webkit-meter-inner-element/index.md | ---
title: "::-webkit-meter-inner-element"
slug: Web/CSS/::-webkit-meter-inner-element
page-type: css-pseudo-element
status:
- non-standard
browser-compat: css.selectors.-webkit-meter-inner-element
---
{{CSSRef}}{{Non-standard_header}}
**`::-webkit-meter-inner-element`** is a proprietary WebKit CSS pseudo-element f... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/text-underline-offset/index.md | ---
title: text-underline-offset
slug: Web/CSS/text-underline-offset
page-type: css-property
browser-compat: css.properties.text-underline-offset
---
{{CSSRef}}
The **`text-underline-offset`** [CSS](/en-US/docs/Web/CSS) property sets the offset distance of an underline text decoration line (applied using {{cssxref("t... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/hyphenate-limit-chars/index.md | ---
title: hyphenate-limit-chars
slug: Web/CSS/hyphenate-limit-chars
page-type: css-property
browser-compat: css.properties.hyphenate-limit-chars
---
{{CSSRef}}
The **`hyphenate-limit-chars`** [CSS](/en-US/docs/Web/CSS) property specifies the minimum word length to allow hyphenation of words as well as the minimum nu... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/reference/index.md | ---
title: CSS reference
slug: Web/CSS/Reference
page-type: landing-page
---
{{CSSRef}}
Use this **CSS reference** to browse an [alphabetical index](#index) of all of the standard [CSS](/en-US/docs/Web/CSS) properties, [pseudo-classes](/en-US/docs/Web/CSS/Pseudo-classes), [pseudo-elements](/en-US/docs/Web/CSS/Pseudo-... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/border-image-outset/index.md | ---
title: border-image-outset
slug: Web/CSS/border-image-outset
page-type: css-property
browser-compat: css.properties.border-image-outset
---
{{CSSRef}}
The **`border-image-outset`** [CSS](/en-US/docs/Web/CSS) property sets the distance by which an element's [border image](/en-US/docs/Web/CSS/border-image) is set o... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/transition-delay/index.md | ---
title: transition-delay
slug: Web/CSS/transition-delay
page-type: css-property
browser-compat: css.properties.transition-delay
---
{{CSSRef}}
The **`transition-delay`** CSS property specifies the duration to wait before starting a property's [transition effect](/en-US/docs/Web/CSS/CSS_transitions/Using_CSS_transi... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/flex-shrink/index.md | ---
title: flex-shrink
slug: Web/CSS/flex-shrink
page-type: css-property
browser-compat: css.properties.flex-shrink
---
{{CSSRef}}
The **`flex-shrink`** [CSS](/en-US/docs/Web/CSS) property sets the flex shrink factor of a flex item. If the size of all flex items is larger than the flex container, items shrink to fit ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/justify-content/index.md | ---
title: justify-content
slug: Web/CSS/justify-content
page-type: css-property
browser-compat: css.properties.justify-content
---
{{CSSRef}}
The [CSS](/en-US/docs/Web/CSS) **`justify-content`** property defines how the browser distributes space between and around content items along the {{Glossary("Main Axis", "mai... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/box-align/index.md | ---
title: box-align
slug: Web/CSS/box-align
page-type: css-property
status:
- deprecated
- non-standard
browser-compat: css.properties.box-align
---
{{CSSRef}}{{Non-standard_header}}{{Deprecated_Header}}
> **Warning:** This is a property of the original CSS Flexible Box Layout Module draft, and has been replaced... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_doublecolon_-webkit-inner-spin-button/index.md | ---
title: "::-webkit-inner-spin-button"
slug: Web/CSS/::-webkit-inner-spin-button
page-type: css-pseudo-element
status:
- non-standard
browser-compat: css.selectors.-webkit-inner-spin-button
---
{{CSSRef}}{{Non-standard_header}}
The **`::-webkit-inner-spin-button`** CSS pseudo-element is used to style the inner pa... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/exp/index.md | ---
title: exp()
slug: Web/CSS/exp
page-type: css-function
browser-compat: css.types.exp
---
{{CSSRef}}
The **`exp()`** [CSS](/en-US/docs/Web/CSS) [function](/en-US/docs/Web/CSS/CSS_Functions) is an exponential function that takes an number as an argument and returns the mathematical constant `e` raised to the power ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/scroll-padding-block-end/index.md | ---
title: scroll-padding-block-end
slug: Web/CSS/scroll-padding-block-end
page-type: css-property
browser-compat: css.properties.scroll-padding-block-end
---
{{CSSRef}}
The `scroll-padding-block-end` property defines offsets for the end edge in the block dimension of the _optimal viewing region_ of the scrollport: t... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/text-underline-position/index.md | ---
title: text-underline-position
slug: Web/CSS/text-underline-position
page-type: css-property
browser-compat: css.properties.text-underline-position
---
{{CSSRef}}
The **`text-underline-position`** [CSS](/en-US/docs/Web/CSS) property specifies the position of the underline which is set using the {{cssxref("text-de... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_colon_visited/index.md | ---
title: ":visited"
slug: Web/CSS/:visited
page-type: css-pseudo-class
browser-compat: css.selectors.visited
---
{{CSSRef}}
The **`:visited`** [CSS](/en-US/docs/Web/CSS) [pseudo-class](/en-US/docs/Web/CSS/Pseudo-classes) applies once the link has been visited by the user. For privacy reasons, the styles that can be... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/padding-block-start/index.md | ---
title: padding-block-start
slug: Web/CSS/padding-block-start
page-type: css-property
browser-compat: css.properties.padding-block-start
---
{{CSSRef}}
The **`padding-block-start`** [CSS](/en-US/docs/Web/CSS) property defines the logical block start padding of an element, which maps to a physical padding depending... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/background-attachment/index.md | ---
title: background-attachment
slug: Web/CSS/background-attachment
page-type: css-property
browser-compat: css.properties.background-attachment
---
{{CSSRef}}
The **`background-attachment`** [CSS](/en-US/docs/Web/CSS) property sets whether a background image's position is fixed within the {{glossary("viewport")}}, ... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_namespaces/index.md | ---
title: CSS namespaces
slug: Web/CSS/CSS_namespaces
page-type: css-module
browser-compat: css.at-rules.namespace
---
{{CSSRef}}
The **CSS namespaces** module defines the syntax for using {{glossary("namespace", "namespaces")}} in CSS.
CSS isn't just for styling HTML. A stylesheet may be used to style SVG, MathML,... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/border-color/index.md | ---
title: border-color
slug: Web/CSS/border-color
page-type: css-shorthand-property
browser-compat: css.properties.border-color
---
{{CSSRef}}
The **`border-color`** [shorthand](/en-US/docs/Web/CSS/Shorthand_properties) [CSS](/en-US/docs/Web/CSS) property sets the color of an element's border.
{{EmbedInteractiveExa... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/pointer-events/index.md | ---
title: pointer-events
slug: Web/CSS/pointer-events
page-type: css-property
browser-compat: css.properties.pointer-events
---
{{CSSRef}}
The **`pointer-events`** [CSS](/en-US/docs/Web/CSS) property sets under what circumstances (if any) a particular graphic element can become the [target](/en-US/docs/Web/API/Event... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/css_basic_user_interface/index.md | ---
title: CSS basic user interface
slug: Web/CSS/CSS_basic_user_interface
page-type: css-module
spec-urls: https://drafts.csswg.org/css-ui/
---
{{CSSRef}}
The **CSS basic user interface** module lets you define the rendering and functionality of features related to the user interface including outline properties, vi... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/_colon_disabled/index.md | ---
title: ":disabled"
slug: Web/CSS/:disabled
page-type: css-pseudo-class
browser-compat: css.selectors.disabled
---
{{CSSRef}}
The **`:disabled`** [CSS](/en-US/docs/Web/CSS) [pseudo-class](/en-US/docs/Web/CSS/Pseudo-classes) represents any disabled element. An element is disabled if it can't be activated (selected,... | 0 |
data/mdn-content/files/en-us/web/css | data/mdn-content/files/en-us/web/css/layout_cookbook/index.md | ---
title: CSS Layout cookbook
slug: Web/CSS/Layout_cookbook
page-type: landing-page
---
{{CSSRef}}
The CSS layout cookbook aims to bring together recipes for common layout patterns, things you might need to implement in your own sites. In addition to providing code you can use as a starting point in your projects, t... | 0 |
data/mdn-content/files/en-us/web/css/layout_cookbook | data/mdn-content/files/en-us/web/css/layout_cookbook/pagination/index.md | ---
title: Pagination
slug: Web/CSS/Layout_cookbook/Pagination
page-type: guide
browser-compat: css.properties.flex
---
{{CSSRef}}
This cookbook pattern demonstrates the navigation pattern used to display pagination, where the user can move between pages of content such as search results.
![Links to sets of pages in... | 0 |
data/mdn-content/files/en-us/web/css/layout_cookbook | data/mdn-content/files/en-us/web/css/layout_cookbook/grid_wrapper/index.md | ---
title: Grid wrapper
slug: Web/CSS/Layout_cookbook/Grid_wrapper
page-type: guide
browser-compat: css.properties.grid
---
{{CSSRef}}
The grid wrapper pattern is useful for aligning grid content within a central wrapper while also allowing items to break out and align to the edge of the containing element or page.
... | 0 |
data/mdn-content/files/en-us/web/css/layout_cookbook | data/mdn-content/files/en-us/web/css/layout_cookbook/breadcrumb_navigation/index.md | ---
title: Breadcrumb navigation
slug: Web/CSS/Layout_cookbook/Breadcrumb_Navigation
page-type: guide
browser-compat: css.properties.flex
---
{{CSSRef}}
Breadcrumb navigation helps the user to understand their location in the website by providing a {{glossary("breadcrumb")}} trail back to the start page. The items ty... | 0 |
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