72 lines
1.9 KiB
HTML
72 lines
1.9 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>CSS Selectors: :is()</title>
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<link rel="author" title="Victoria Su" href="mailto:victoriaytsu@google.com">
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<link rel="help" href="https://drafts.csswg.org/selectors-4/#matches">
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<meta name="assert" content="This tests that the :is() selector is effective when nested">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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/* Testing that highest specificity is chosen for class outside of :is() */
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.a+.b+.c>.e+.d {
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color: black;
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font-size: 10px;
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width: 10px;
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}
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.e:is(.b+.f, .e:is(*, .c>.e, .g, *))+.d {
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color: red;
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font-size: 20px;
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}
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.a+.b+.c>.e+.d {
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color: yellow;
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}
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/* Testing specificty of a class within :is() */
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.a+.c>.e {
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color: black;
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}
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.e:is(.b+.f, :is(.c>.e, .g)) {
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color: red;
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}
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.c>.e {
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color: black;
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}
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</style>
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</head>
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<body>
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<div class="a">
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</div>
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<div class="b" id="b2">
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</div>
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<div class="c" id="c2">
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<div class="e">
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</div>
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<div class="d" id="d1">
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Yellow
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</div>
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</div>
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<div class="a">
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</div>
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<div class="c" id="c2">
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<div class="e" id="e1">
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Red
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</div>
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</div>
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<script>
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var red = "rgb(255, 0, 0)";
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var yellow = "rgb(255, 255, 0)";
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test(() => {
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assert_equals(getComputedStyle(d1).color, yellow);
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assert_equals(getComputedStyle(d1).fontSize, "20px");
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assert_equals(getComputedStyle(d1).width, "10px");
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}, "Test nested :is() chooses highest specificity for class outside :is().");
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test(() => {
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assert_equals(getComputedStyle(e1).color, red);
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}, "Test nested :is() specificity for class within arguments.");
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</script>
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</body>
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</html>
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