mozilla-central/testing/web-platform/tests/css/css-pseudo/highlight-cascade/highlight-cascade-006.xhtml

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<?xml version="1.0"?><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta charset="utf-8"/>
<title>CSS Pseudo-Elements Test: highlight cascade: inheritance with both universal and namespace-universal rules</title>
<link rel="author" title="Delan Azabani" href="mailto:dazabani@igalia.com"/>
<link rel="match" href="highlight-cascade-006-ref.xhtml"/>
<meta name="assert" content="This test verifies that, given both universal ::selection rules and ::selection rules that are actually non-universal due to an explicit namespace prefix or default @namespace rule, the non-universal rules are not erroneously treated as universal."/>
<script src="../support/selections.js"></script>
<style>
main * { all: initial; display: block; }
::selection { color: green; } /* 1. universal (* means *|* if there is no default @namespace) */
.red::selection { color: red; } /* 2. not universal; matches only .red */
</style>
<style>
@namespace foo "http://example.org/foo";
*|*.bar::selection { color: red; } /* 3. not universal; matches only .bar */
|*::selection { color: red; } /* 4. not universal; matches only no/empty xmlns */
foo|*::selection { color: red; } /* 5. not universal; matches only xmlns http://example.org/foo */
::selection { color: red; } /* 6. not universal; matches only xmlns http://example.org/default */
</style>
</head><body>
<main xmlns:other="http://example.org/other">
<!-- div.red is red (1+2), span.bar is red (1+3), other:a is green (1) -->
<div class="red"><span class="bar"><other:a>green</other:a></span></div>
<!-- div.red is red (1+2), empty is red (1+4), other:b is green (1) -->
<div class="red"><empty xmlns=""><other:b>green</other:b></empty></div>
<!-- div.red is red (1+2), foo is red (1+5), other:c is green (1) -->
<div class="red"><foo xmlns="http://example.org/foo"><other:c>green</other:c></foo></div>
<!-- div.red is red (1+2), default is red (1+6), other:d is green (1) -->
<div class="red"><default xmlns="http://example.org/default"><other:d>green</other:d></default></div>
</main>
<script>selectNodeContents(document.body);</script>
</body></html>