<!doctype html> <meta charset="utf-8"> <title>CSS Pseudo-Elements Test: paired cascade: UA default highlight colors are not used when highlight pseudo has declared color value of unset</title> <link rel="author" name="Delan Azabani" href="mailto:dazabani@igalia.com"> <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-cascade"> <link rel="match" href="highlight-paired-cascade-005-ref.html"> <meta name="assert" value="This test verifies that setting color to unset on ::selection suppresses any UA non-initial used value for background-color. The unset value is defined as both “treated as [inherit or initial depending on whether the property is inherited]” and “effectively erases all declared values occurring earlier in the cascade [(inclusive)]”, which are normally equivalent, but under paired cascade, the former wins."> <script src="support/selections.js"></script> <link rel="stylesheet" href="support/highlights.css"> <style> main { font-size: 7em; margin: 0.5em; } main::selection { /* Used background-color should be initial (transparent). https://www.w3.org/TR/CSS21/colors.html#propdef-background-color */ color: unset; } </style> <p>Test passes if the text below does not appear to be highlighted. <main class="highlight_reftest">quick</main> <script>selectNodeContents(document.querySelector("main"));</script>