49 lines
1.1 KiB
HTML
49 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {
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height: 1200px;
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}
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.box {
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width: 100px;
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height: 100px;
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margin: 50px;
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background-color: blue;
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border: 2px solid black;
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}
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#box {
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background-image: linear-gradient(to top, white, black);
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background-attachment: fixed;
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background-repeat: no-repeat;
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}
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#box.loaded {
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background: transparent;
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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.dumpAsText();
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function doTest()
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{
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var box = document.getElementById('box');
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box.classList.add('loaded');
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if (window.internals)
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document.getElementById('reasons').textContent = window.internals.synchronousScrollingReasons();
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}
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window.addEventListener('load', doTest, false);
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</script>
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</head>
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<body>
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<div id="box" class="box"></div>
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<p>Test passes if there are no reasons for slow scrolling below.</p>
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<pre id="reasons"></pre>
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</body>
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</html>
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