::slotted
A pseudo-element used inside a Web Component (Shadow DOM) to style elements that have been 'slotted' into a <slot> tag from the light DOM.
Quick example
/* Inside the shadow DOM of a custom element */
::slotted(img) {
/* Styles images that were passed into the component's slot */
border-radius: 50%;
max-width: 100px;
}::slotted Browser Support
Widely available Since 2020 95% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2020.
Safe to use without fallbacks.
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