Using the :has() Selector for Proactive Component Styling
Explore how to apply the :has() selector to create flexible and reusable CSS components. Learn to style elements proactively by detecting child presence, combining :has() with :not(), and managing component states without extra classes or JavaScript.
Now that we understand the essential mechanics of using :has() , we’re going to use it to style some practical components. With :has(), we can provide proactive stying instead of relying on the application of classes.
layout.css.has-selector.enabled flag enabled in Firefox 103+. Please refer here for the most up-to-date support information.