isolation
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
The isolation
CSS property determines whether an element must create a new stacking context.
Try it
This property is especially helpful when used in conjunction with mix-blend-mode
and z-index
.
Syntax
css
/* 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
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 | Not animatable |
Formal syntax
isolation =
<isolation-mode>
<isolation-mode> =
auto |
isolate
Examples
Forcing a new stacking context for an element
HTML
html
<div class="big-square ">
<div class="isolation-auto">
<div class="small-square">auto</div>
</div>
<div class="isolation-isolate">
<div class="small-square">isolate</div>
</div>
</div>
CSS
css
.isolation-auto {
isolation: auto;
}
.isolation-isolate {
isolation: isolate;
}
.big-square {
background-color: rgb(0 255 0);
width: 200px;
height: 210px;
}
.small-square {
background-color: rgb(0 255 0);
width: 100px;
height: 100px;
border: 1px solid black;
padding: 2px;
mix-blend-mode: difference;
}
Result
Specifications
Specification |
---|
Compositing and Blending Level 2 # isolation |
Browser compatibility
BCD tables only load in the browser