This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The 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;

Initial valuenone
Applies toall elements; In SVG, it applies to container elements excluding the <defs> element and all graphics elements
Inheritedno
Mediavisual
Computed valueas specified
Animation typea filter function list
Canonical orderthe unique non-ambiguous order defined by the formal grammar

Syntax

Values

none
No filter is applied to the backdrop.
<filter-function-list>
A space-separated list of <filter-function>s or an SVG filter that will be applied to the backdrop.

Formal syntax

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>

Example

CSS

.box {
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 5px;
  font-family: sans-serif;
  text-align: center;
  line-height: 1; 
  backdrop-filter: blur(10px);  
  -webkit-backdrop-filter: blur(10px);
  max-width: 50%;
  max-height: 50%;
  padding: 20px 40px;
}

html,
body {
  height: 100%;
  width: 100%;
}

body {
  background-image: url('https://lorempixel.com/400/200/');
  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>

Result

Specifications

Specification Status Comment
Filter Effects Module Level 2
The definition of 'backdrop-filter' in that specification.
Editor's Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 47
Disabled
Full support 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 Full support 17Firefox No support No
Notes
No support No
Notes
Notes See bug 1178765.
IE No support NoOpera Full support 34
Disabled
Full support 34
Disabled
Disabled From version 34: this feature is behind the Enable Experimental Web Platform Features preference.
Safari Full support 9
Prefixed
Full support 9
Prefixed
Prefixed Requires the vendor prefix: -webkit-
WebView Android No support NoChrome Android Full support 47
Disabled
Full support 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 Mobile Full support 17Firefox Android No support No
Notes
No support No
Notes
Notes See bug 1178765.
Opera Android ? Safari iOS ? Samsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.

See also

Document Tags and Contributors

Last updated by: fscholz,