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• 句法
• 形式定义
• 形式句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

all 简写 CSS property resets all of an element's properties except unicode-bidi , direction ，和 CSS Custom Properties . It can set properties to their initial or inherited values, or to the values specified in another stylesheet origin.

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

句法

/* Global values */
all: initial;
all: inherit;
all: unset;
/* CSS Cascading and Inheritance Level 4 */
all: revert;
					

all property is specified as one of the CSS global keyword values. Note that none of these values affect the unicode-bidi and direction 特性。

值

initial

Specifies that all the element's properties should be changed to their initial values .

inherit

Specifies that all the element's properties should be changed to their inherited values .

unset

Specifies that all the element's properties should be changed to their inherited values if they inherit by default, or to their initial values if not.

revert

Specifies behavior that depends on the stylesheet origin to which the declaration belongs:

User-agent origin

相当于 unset .

User origin

Rolls back the cascade to the user-agent level, so that the specified values are calculated as if no author-level or user-level rules were specified for the element.

Author origin

Rolls back the cascade to the user level, so that the specified values are calculated as if no author-level rules were specified for the element. For purposes of revert , the Author origin includes the Override and Animation origins.

形式定义

初始值	There is no practical initial value for it.
适用于	所有元素
继承	no
计算值	as the specified value applies to each property this is a shorthand for.
动画类型	as each of the properties of the shorthand (all properties but unicode-bidi and direction )

形式句法

initial | inherit | unset | revert
								

范例

HTML

<blockquote id="quote">
  Lorem ipsum dolor sit amet, consectetur adipiscing elit.
</blockquote>
Phasellus eget velit sagittis.
								

CSS

body {
  font-size: small;
  background-color: #F0F0F0;
  color: blue;
}
blockquote {
  background-color: skyblue;
  color: red;
}
								

结果

No all property

<blockquote id="quote">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</blockquote> Phasellus eget velit sagittis.
									

body { font-size: small; background-color: #F0F0F0; color:blue; }
blockquote { background-color: skyblue;  color: red; }
									

<blockquote> uses the browser's default styling together with a specific background and text color. It also behaves as a block element: the text that follows it is beneath it.

all:unset

<blockquote id="quote">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</blockquote> Phasellus eget velit sagittis.
									

body { font-size: small; background-color: #F0F0F0; color:blue; }
blockquote { background-color: skyblue;  color: red; }
blockquote { all: unset; }
									

<blockquote> doesn't use the browser default styling: it is an inline element now (initial value), its background-color is transparent (initial value), but its font-size is still small (inherited value) and its color is blue (inherited value).

all:initial

<blockquote id="quote">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</blockquote> Phasellus eget velit sagittis.
									

body { font-size: small; background-color: #F0F0F0; color:blue; }
blockquote { background-color: skyblue;  color: red; }
blockquote { all: initial; }
									

<blockquote> doesn't use the browser default styling: it is an inline element now (initial value), its background-color is transparent (initial value), its font-size is normal (initial value) and its color is black (initial value).

all:inherit

<blockquote id="quote">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</blockquote> Phasellus eget velit sagittis.
									

body { font-size: small; background-color: #F0F0F0; color:blue; }
blockquote { background-color: skyblue; color: red; }
blockquote { all: inherit; }
									

<blockquote> doesn't use the browser default styling: it is a block element now (inherited value from its containing <body> element), its background-color is #F0F0F0 (inherited value), its font-size is small (inherited value) and its color is blue (inherited value).

规范

规范	状态	注释
CSS Cascading and Inheritance Level 4 The definition of 'all' in that specification.	候选推荐	添加 revert 值。
CSS Cascading and Inheritance Level 3 The definition of 'all' in that specification.	候选推荐	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
all	Chrome 完整支持 37	Edge 完整支持 79	Firefox 完整支持 27	IE 不支持 No	Opera 完整支持 24	Safari 完整支持 9.1	WebView Android 完整支持 37	Chrome Android 完整支持 37	Firefox Android 完整支持 27	Opera Android 完整支持 24	Safari iOS 完整支持 9.3	Samsung Internet Android 完整支持 3.0
revert	Chrome 完整支持 84	Edge 完整支持 84	Firefox 完整支持 67	IE 不支持 No	Opera 完整支持 70	Safari 完整支持 9.1	WebView Android 完整支持 84	Chrome Android 完整支持 84	Firefox Android 完整支持 67	Opera Android 不支持 No	Safari iOS 完整支持 9.3	Samsung Internet Android 不支持 No

图例

完整支持

完整支持

不支持

不支持

另请参阅

CSS global keyword values: initial , inherit , unset , revert

元数据

• 最后修改： Jul 30, 2020

相关话题

1. CSS
2. CSS 参考
3. CSS Miscellaneous
4. 特性

   1. all
   2. text-rendering