Combining :is() and :where() with Other Selectors in CSS
The :is() and :where() pseudo-classes can be combined with type selectors, classes, IDs, and other pseudo-classes to simplify complex CSS selectors and make your code cleaner and more maintainable.
Group multiple element types, classes, or pseudo-classes inside
:is()or:where()to reduce repetition.Combine with child (
>) or descendant selectors for precise targeting, e.g.,div:is(.card, .panel) > h2.Use
:where()for default styling without increasing specificity, especially for utility or global styles.Combine with pseudo-classes like
:hover,:focus, or:nth-child()for interactive or dynamic styling.
In this example, :is() groups .card and .panel to style their headings together, :where() sets default paragraph color without increasing specificity, and :is() is also used to apply hover styles to links in multiple parent containers efficiently.
Use
:is()when you want the selectors inside to maintain specificity for overriding purposes.Use
:where()for fallback or utility styles to avoid specificity conflicts.Combine them with combinators and other pseudo-classes for concise and maintainable CSS.
Test across modern browsers to ensure compatibility and fallback gracefully if necessary.