62 lines
1.5 KiB
HTML
62 lines
1.5 KiB
HTML
<!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] -->
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<html>
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<head>
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<style>
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.scroller {
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position: absolute;
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z-index: 0;
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margin: 20px;
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width: 300px;
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height: 300px;
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border: 1px solid black;
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overflow: hidden;
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}
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.scroller.scrollable {
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overflow-y: scroll;
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}
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.contents {
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height: 2000px;
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}
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.negative {
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position: absolute;
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top: 0;
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left: 0;
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z-index: -1;
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padding: 20px;
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background-color: gray;
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}
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.box {
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width: 200px;
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height: 200px;
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}
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.composited {
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width: 20px;
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height: 20px;
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transform: translateZ(0);
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background-color: silver;
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}
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</style>
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<script>
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if (window.testRunner)
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testRunner.waitUntilDone();
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window.addEventListener('load', () => {
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setTimeout(() => {
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document.getElementById('target').classList.add('scrollable');
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if (window.testRunner)
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testRunner.notifyDone();
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}, 0);
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}, false);
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</script>
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</head>
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<body>
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<div id="target" class="scroller">
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<div class="negative"></div>
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<div class="contents">
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<div class="composited box"></div>
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<div class="box" style="background-color: green"></div>
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</div>
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</div>
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</body>
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</html>
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