The isolation
CSS property determines whether an element must create a new stacking context.
isolation
Try it
This property is especially helpful when used in conjunction with mix-blend-mode
and z-index
.
Syntax
/* Keyword values */ isolation: auto; isolation: isolate; /* Global values */ isolation: inherit; isolation: initial; isolation: revert; isolation: revert-layer; isolation: unset;
The isolation
property is specified as one of the keyword values listed below.
Values
-
auto
-
A new stacking context is created only if one of the properties applied to the element requires it.
-
isolate
-
A new stacking context must be created.
Formal definition
Initial value | auto |
---|---|
Applies to | All elements. In SVG, it applies to container elements, graphics elements, and graphics referencing elements. |
Inherited | no |
Computed value | as specified |
Animation type | discrete |
Formal syntax
auto | isolate
Examples
Forcing a new stacking context for an element
HTML
<div id="b" class="a"> <div id="d"> <div class="a c">auto</div> </div> <div id="e"> <div class="a c">isolate</div> </div> </div>
CSS
.a { background-color: rgb(0,255,0); } #b { width: 200px; height: 210px; } .c { width: 100px; height: 100px; border: 1px solid black; padding: 2px; mix-blend-mode: difference; } #d { isolation: auto; } #e { isolation: isolate; }
Result
Specifications
Specification |
---|
Compositing and Blending Level 2 # isolation |
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 | |
isolation |
41
|
79
|
36
|
No
|
30
|
8
|
41
|
41
|
36
|
30
|
8
|
4.0
|
See also
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/isolation