:is()
Matches any element in its list while taking the specificity of its most specific argument. It is used to group selectors efficiently and reduce repetition.
Quick example
/* Styles all headings at once without repeating the parent selector */
article :is(h1, h2, h3) {
color: #111827;
margin-bottom: 0.5rem;
}:is() Browser Support
Widely available Since 2021 95% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2021.
Safe to use without fallbacks.
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