<!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="help" href="https://github.com/w3c/csswg-drafts/issues/7591"> <meta name="assert" content="This test verifies that non-applicable property declarations are ignored in highlight pseudos, that the computed values of ‘font-size’ and ‘line-height’ in highlight pseudos are taken from the originating element, and that ‘text-shadow’ in highlight pseudos respects these values when given ‘em’ and ‘lh’ units."> <script src="support/selections.js"></script> <link rel="stylesheet" href="support/highlights.css"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <style> main { font-size: 12px; line-height: 13px; } main span { font-size: 18px; line-height: 19px; } /* * (universal) */::selection { font-size: 42px; line-height: 43px; } main .M::selection { text-shadow: green 1em 0; } main .W::selection { text-shadow: green 0 1lh; } /* * (universal) */::selection { text-decoration-thickness: 1em; } </style> <main> <div class="M"><div><span>M</span></div></div> <div class="W"><div><span>W</span></div></div> <div class="U"><div><span>U</span></div></div> </main> <script> selectNodeContents(document.querySelector("main")); const m = getComputedStyle(document.querySelector("main .M"), "::selection"); const mSpan = getComputedStyle(document.querySelector("main .M span"), "::selection"); test(() => void assert_equals(m.fontSize, "12px"), "M::selection’s font-size is the same as in M"); test(() => void assert_equals(mSpan.fontSize, "18px"), "M span::selection’s font-size is the same as in M span"); test(() => void assert_equals(m.textShadow, "rgb(0, 128, 0) 12px 0px 0px"), "M::selection’s own text-shadow respects M’s font-size"); test(() => void assert_equals(mSpan.textShadow, "rgb(0, 128, 0) 12px 0px 0px"), "M span::selection’s inherited text-shadow respects M’s font-size"); const w = getComputedStyle(document.querySelector("main .W"), "::selection"); const wSpan = getComputedStyle(document.querySelector("main .W span"), "::selection"); test(() => void assert_equals(w.lineHeight, "13px"), "W::selection’s line-height is the same as in W"); test(() => void assert_equals(wSpan.lineHeight, "19px"), "W span::selection’s line-height is the same as in W span"); test(() => void assert_equals(w.textShadow, "rgb(0, 128, 0) 0px 13px 0px"), "W::selection’s own text-shadow respects W’s line-height"); test(() => void assert_equals(wSpan.textShadow, "rgb(0, 128, 0) 0px 13px 0px"), "W span::selection’s inherited text-shadow respects W’s line-height"); const u = getComputedStyle(document.querySelector("main .U"), "::selection"); const uSpan = getComputedStyle(document.querySelector("main .U span"), "::selection"); test(() => void assert_equals(u.fontSize, "12px"), "U::selection’s font-size is the same as in U"); test(() => void assert_equals(uSpan.fontSize, "18px"), "U span::selection’s font-size is the same as in U span"); test(() => void assert_equals(u.textDecorationThickness, "12px"), "U::selection’s own text-decoration-thickness respects U’s font-size"); test(() => void assert_equals(uSpan.textDecorationThickness, "18px"), "U span::selection’s own text-decoration-thickness respects U span’s font-size"); </script>