Isolation

Set whether an element must create a new stacking context.

This feature is well established and works across many devices and browser versions.

Chrome

Edge

Firefox

Safari

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Usage

Allow the element to use the default isolation behavior.

<div class="is-auto ..."></div>

Create a new stacking context for the element.

<div class="is-i ..."></div>

Use breakpoint prefixes to target different screen sizes. Styles apply from the breakpoint & up.

Target viewport sizes with breakpoint prefixes.

sm:is-*

Small≥640px

md:is-*

Medium≥768px

lg:is-*

Large≥1024px

xxl:is-*

Extra Large≥1536px

Apply styles conditionally on hover using the h: prefix.

Add the h: prefix to apply styles only when the user hovers over the element.

Syntax:h:is-*