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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Cascade: "all: revert-layer"</title>
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<link rel="help" href="https://www.w3.org/TR/css-cascade-5/#revert-layer">
<meta name="assert" content="Checks that adding 'all: revert-layer' inside @layer has no effect on elements with no other author rules.">
<!-- Split into chunks to avoid timeouts. -->
<meta name="variant" content="?include=0">
<meta name="variant" content="?include=1">
<meta name="variant" content="?include=2">
<meta name="variant" content="?include=3">
<meta name="variant" content="?include=4">
<meta name="variant" content="?include=5">
<meta name="variant" content="?include=6">
<meta name="variant" content="?include=7">
<script>
const CHUNKS = 8;
</script>
<style>
@layer {
.revert-all {
all: revert-layer;
}
}
</style>
<div id="log"></div>
<div id="wrapper"></div>
<script src="/common/subset-tests-by-key.js"></script>
<script src="/html/resources/common.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
function cloneStyle(style) {
const clone = Object.create(null);
for (let property of style) {
clone[property] = style.getPropertyValue(property);
}
return clone;
}
function assertSameClones(clone1, clone2, callback) {
for (let property in clone1) {
const value1 = clone1[property];
const value2 = clone2[property];
// assert_equals is slow, so only call it if it's going to fail.
if (value1 !== value2) {
assert_equals(value1, value2, property);
}
}
}
const wrapper = document.getElementById("wrapper");
const elementNames = [...HTML5_ELEMENTS, "math", "svg", "z-custom"].sort();
for (let i = 0; i < elementNames.length; ++i) {
let elementName = elementNames[i];
let chunk = i % CHUNKS;
subsetTestByKey(chunk.toString(), test, function() {
const element = document.createElement(elementName);
wrapper.appendChild(element);
const style = getComputedStyle(element);
const clonedBaseStyle = cloneStyle(style);
element.classList.add("revert-all");
const clonedRevertedStyle = cloneStyle(style);
assertSameClones(clonedRevertedStyle, clonedBaseStyle);
}, elementName);
}
</script>
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