22 lines
897 B
HTML
22 lines
897 B
HTML
<!doctype html>
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<title>CSS Test: element style is correctly updated for rule with :host</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
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<link rel="help" href="https://drafts.csswg.org/css-scoping/#host-selector">
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<div id="host"><div id="slotted"></div></div>
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<script>
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test(function() {
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let root = host.attachShadow({ mode: "open" });
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root.innerHTML = `
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<style>
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:host ::slotted(div) { width: 100px; height: 100px; background: red; }
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:host ::slotted(.foo) { background: green; }
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</style>
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<slot></slot>
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`;
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assert_equals(getComputedStyle(slotted).backgroundColor, "rgb(255, 0, 0)");
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host.firstElementChild.classList.add('foo');
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assert_equals(getComputedStyle(slotted).backgroundColor, "rgb(0, 128, 0)");
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});
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</script>
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