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95 lines
1.8 KiB
HTML
95 lines
1.8 KiB
HTML
<!DOCTYPE html>
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<html lang="en" reftest-async-scroll>
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<meta charset="utf-8">
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<title>Scrollboxes with uniform backgrounds should pull that color into their contents, even if these contents are wider than the uniform area behind the scrollbox</title>
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<!--
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Very similar to pull-background-displayport-2.html, but with a .scrolled element that is
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wider than the scrollbox.
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-->
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<style>
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div {
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min-height: 50px;
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box-model: border-box;
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}
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.first, .second {
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border: 1px solid blue;
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margin: 50px 0;
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}
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.border {
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border: 1px solid black;
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}
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.scrollable {
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height: 150px;
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overflow: auto;
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}
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.scrollarea {
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width: 5000px;
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border: none;
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padding: 10px 0 20px;
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height: auto;
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}
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.scrolled {
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margin-left: 220px;
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width: 2000px;
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height: 100px;
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border-color: red;
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}
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.opacity {
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opacity: 0.9;
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}
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body {
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margin: 0;
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padding: 0 100px;
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height: 3000px;
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}
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</style>
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<div class="first" reftest-assigned-layer="page-background">
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<!--
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This is just a regular box, it should end up in the page background layer.
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-->
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</div>
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<div class="opacity border">
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<div class="scrollable"
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reftest-displayport-x="0" reftest-displayport-y="0"
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reftest-displayport-w="2000" reftest-displayport-h="200">
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<div class="scrollarea">
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<div class="scrolled border reftest-opaque-layer">
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<!--
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The background of .scrollable is uniform and opaque,
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.scrolled should be able to pull up that background color and become
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opaque itself.
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-->
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</div>
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</div>
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</div>
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</div>
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<div class="second" reftest-assigned-layer="page-background">
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<!--
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This should share a layer with .first and the page background.
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-->
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</div>
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<script>
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var scrollable = document.querySelector(".scrollable");
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// Make .scrollable start out with active scrolling.
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scrollable.scrollLeft = 0;
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scrollable.scrollLeft = 20;
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</script>
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