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46 lines
1.3 KiB
HTML
46 lines
1.3 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>Tests that after making a scrolling box a containing block, dynamically-inserted abspos boxes still get positioned correctly</title>
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1735533">
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<link rel="help" href="https://drafts.csswg.org/css-position/#abspos-insets">
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<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
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<link rel="author" href="https://mozilla.org" title="Mozilla">
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<link rel="match" href="containing-block-change-scrollframe-ref.html">
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<style>
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#container {
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width: 400px;
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height: 400px;
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margin: 100px;
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background-color: purple;
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overflow: hidden;
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}
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#spacer {
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height: 700px;
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}
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#bottom {
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height: 100px;
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background-color: green;
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}
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#abspos {
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position: absolute;
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width: 100px;
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height: 100px;
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background-color: green;
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top: 400px;
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left: 0;
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}
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</style>
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<div id="container">
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<div id="spacer"></div>
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<div id="bottom"></div>
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</div>
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<script>
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let container = document.getElementById("container");
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container.scrollTop = 400;
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container.getBoundingClientRect();
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container.style.position = "relative";
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container.getBoundingClientRect();
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let abspos = document.createElement("div");
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abspos.id = "abspos";
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container.appendChild(abspos);
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</script>
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