The blur()
CSS function applies a Gaussian blur to the input image. Its result is a <filter-function>
.
blur()
Try it
Syntax
blur(radius)
Parameters
-
radius
-
The radius of the blur, specified as a
<length>
. It defines the value of the standard deviation to the Gaussian function, i.e., how many pixels on the screen blend into each other; thus, a larger value will create more blur. A value of0
leaves the input unchanged. The initial value for interpolation is0
.
Examples
Setting a blur with pixels and with rem
blur(0) /* No effect */ blur(8px) /* Blur with 8px radius */ blur(1.17rem) /* Blur with 1.17rem radius */
Specifications
Specification |
---|
Filter Effects Module Level 2 # funcdef-filter-blur |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
blur |
18
|
12
|
35
|
No
|
15
|
6
|
4.4
|
53
|
35
|
14
|
6
|
6.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/filter-function/blur