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layer-vs-inline-style.html
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layer-vs-inline-style.html
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<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-cascade-5/#cascade-sort">
<link rel="author" title="Xiaocheng Hu" href="mailto:xiaochengh@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#target, #reference {
width: 100px;
height: 100px;
}
#reference {
background-color: green;
}
</style>
<div id="target"></div>
<div id="reference"></div>
<script>
// In all tests, #target should have green background color, same as #reference
const testCases = [
{
title: 'Normal inline style > normal layered style',
style: '@layer { #target { background-color: red; }}',
inlineStyle: 'background-color: green'
},
{
title: 'Normal inline style < important layered style',
style: '@layer { #target { background-color: green !important; }}',
inlineStyle: 'background-color: red'
},
{
title: 'Important inline style > normal layered style',
style: '@layer { #target { background-color: red; }}',
inlineStyle: 'background-color: green !important'
},
{
title: 'Important inline style > important layered style',
style: '@layer { #target { background-color: red !important; }}',
inlineStyle: 'background-color: green !important'
},
];
for (let testCase of testCases) {
var documentStyle = document.createElement('style');
documentStyle.appendChild(document.createTextNode(testCase['style']));
document.head.appendChild(documentStyle);
target.style = testCase['inlineStyle'];
test(function () {
assert_equals(getComputedStyle(target).backgroundColor,
getComputedStyle(reference).backgroundColor);
}, testCase['title']);
documentStyle.remove();
}
</script>