backdrop-filter

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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

backdrop-filter CSS property lets you apply graphical effects such as blurring or color shifting to the area behind an element. Because it applies to everything behind the element, to see the effect you must make the element or its background at least partially transparent.

/* Keyword value */
backdrop-filter: none;
/* URL to SVG filter */
backdrop-filter: url(commonfilters.svg#filter);
/* <filter-function> values */
backdrop-filter: blur(2px);
backdrop-filter: brightness(60%);
backdrop-filter: contrast(40%);
backdrop-filter: drop-shadow(4px 4px 10px blue);
backdrop-filter: grayscale(30%);
backdrop-filter: hue-rotate(120deg);
backdrop-filter: invert(70%);
backdrop-filter: opacity(20%);
backdrop-filter: sepia(90%);
backdrop-filter: saturate(80%);
/* Multiple filters */
backdrop-filter: url(filters.svg#filter) blur(4px) saturate(150%);
/* Global values */
backdrop-filter: inherit;
backdrop-filter: initial;
backdrop-filter: unset;

句法

值

none
<filter-function-list>: A space-separated list of <filter-function> s or an SVG 过滤 that will be applied to the backdrop.

形式定义

初始值	`none`
适用于	all elements; In SVG, it applies to container elements excluding the `defs` element and all graphics elements
继承	no
计算值	如指定
动画类型	a filter function list

形式句法

none | <filter-function-list>where 
<filter-function-list> = [ <filter-function> | <url> ]+
where 
<filter-function> = <blur()> | <brightness()> | <contrast()> | <drop-shadow()> | <grayscale()> | <hue-rotate()> | <invert()> | <opacity()> | <saturate()> | <sepia()>
where 
<blur()> = blur( <length> )
<brightness()> = brightness( <number-percentage> )
<contrast()> = contrast( [ <number-percentage> ] )
<drop-shadow()> = drop-shadow( <length>{2,3} <color>? )
<grayscale()> = grayscale( <number-percentage> )
<hue-rotate()> = hue-rotate( <angle> )
<invert()> = invert( <number-percentage> )
<opacity()> = opacity( [ <number-percentage> ] )
<saturate()> = saturate( <number-percentage> )
<sepia()> = sepia( <number-percentage> )
where 
<number-percentage> = <number> | <percentage>
<color> = <rgb()> | <rgba()> | <hsl()> | <hsla()> | <hex-color> | <named-color> | currentcolor | <deprecated-system-color>
where 
<rgb()> = rgb( <percentage>{3} [ / <alpha-value> ]? ) | rgb( <number>{3} [ / <alpha-value> ]? ) | rgb( <percentage>#{3} , <alpha-value>? ) | rgb( <number>#{3} , <alpha-value>? )
<rgba()> = rgba( <percentage>{3} [ / <alpha-value> ]? ) | rgba( <number>{3} [ / <alpha-value> ]? ) | rgba( <percentage>#{3} , <alpha-value>? ) | rgba( <number>#{3} , <alpha-value>? )
<hsl()> = hsl( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsl( <hue>, <percentage>, <percentage>, <alpha-value>? )
<hsla()> = hsla( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsla( <hue>, <percentage>, <percentage>, <alpha-value>? )
where 
<alpha-value> = <number> | <percentage>
<hue> = <number> | <angle>

范例

CSS

.box {
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 5px;
  font-family: sans-serif;
  text-align: center;
  line-height: 1;
 -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  max-width: 50%;
  max-height: 50%;
  padding: 20px 40px;
}
html,
body {
  height: 100%;
  width: 100%;
}
body {
  background-image: url(https://picsum.photos/id/1080/6858/4574), linear-gradient(rgb(219, 166, 166), rgb(0, 0, 172));
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}
.container {
  align-items: center;
  display: flex;
  justify-content: center;
  height: 100%;
  width: 100%;
}

HTML

<div class="container">
  <div class="box">
    <p>backdrop-filter: blur(10px)</p>
  </div>
</div>

结果

规范

规范	状态	注释
Filter Effects Module Level 2 The definition of 'backdrop-filter' in that specification.	编者草案	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
`backdrop-filter`	Chrome 完整支持 76 完整支持 76 完整支持 47 Disabled Disabled From version 47: this feature is behind the `Enable Experimental Web Platform Features` preference. To change preferences in Chrome, visit chrome://flags.	Edge 完整支持 17	Firefox 完整支持 70 Disabled 完整支持 70 Disabled Disabled From version 70: this feature is behind the `layout.css.backdrop-filter.enabled` preference (needs to be set to `true` ) and the preference (needs to be set to ). To change preferences in Firefox, visit about:config.	IE 不支持 No	Opera 完整支持 34 Disabled 完整支持 34 Disabled Disabled From version 34: this feature is behind the `Enable Experimental Web Platform Features` preference.	Safari 完整支持 9 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	WebView Android 完整支持 76	Chrome Android 完整支持 76 完整支持 76 完整支持 47 Disabled Disabled From version 47: this feature is behind the `Enable Experimental Web Platform Features` preference. To change preferences in Chrome, visit chrome://flags.	Firefox Android 不支持 No 注意事项不支持 No 注意事项注意事项见 bug 1178765 .	Opera Android 完整支持 54 完整支持 54 完整支持 34 Disabled Disabled From version 34: this feature is behind the `Enable Experimental Web Platform Features` preference.	Safari iOS 完整支持 9 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Samsung Internet Android 完整支持 12.0

图例

完整支持
不支持
见实现注意事项。
用户必须明确启用此特征。
要求使用供应商前缀或不同名称。

另请参阅

filter

元数据

最后修改： Aug 7, 2020

CSS
CSS 参考
过滤器效果
特性
1. <filter-function>
2. backdrop-filter
3. filter

在此页

句法

值

形式定义

形式句法

范例

CSS

HTML

结果

规范

浏览器兼容性

图例

另请参阅

相关话题