isolation
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
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 | 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
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