wpt/css/css-pseudo/highlight-cascade/highlight-cascade-005.html at master · web-platform-tests/wpt · GitHub

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<!doctype html>
<meta charset="utf-8">
<title>CSS Pseudo-Elements Test: highlight cascade: inheritance with both universal and non-universal rules</title>
<link rel="author" title="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-cascade-005-ref.html">
<meta name="assert" content="This test verifies that, given both universal and non-universal ::selection rules, the subject of the non-universal rule has styles from both rules with the non-universal styles overriding the universal styles (due to the cascade), its descendants have styles from both rules with the universal styles overriding the non-universal styles (due to highlight inheritance), and its siblings have the universal styles only.">
<script src="support/selections.js"></script>
<link rel="stylesheet" href="../support/highlights.css">
<style>
    /* * (universal) */::selection {
        background-color: green;
        color: white;
    }
    main::selection,
    aside ::selection {
        color: yellow;
    }
</style>
<nav class="highlight_reftest">white</nav>
<main class="highlight_reftest">yellow <span>white <b>white</b></span></main>
<aside class="highlight_reftest">white <i>yellow</i></aside>
<script>selectNodeContents(document.body);</script>