<!DOCTYPE html> <title>Initial custom property values in div::selection rule</title> <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-cascade"> <script src="support/selections.js"></script> <style> div::selection { background-color: green; } </style> <div>PASS if background-color is green when selected</div> <script> selectNodeContents(document.querySelector("div")); </script>