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64 lines
1.6 KiB
HTML
64 lines
1.6 KiB
HTML
<!DOCTYPE html>
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<html class="reftest-wait">
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<meta charset="UTF-8">
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<title>CSS Pseudo-Elements Test: active selection and image</title>
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<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
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<link rel="help" href="https://www.w3.org/TR/css-pseudo-4/#highlight-painting">
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<link rel="match" href="../reference/ref-nothing-below.xht">
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<meta name="assert" content="This test checks that the associated overlay for image must not cover (or leak) outside the image's content box.">
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<style>
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/*
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Chromium 80+ highlights the
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top of line box minus
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content box and the bottom
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of line box minus content
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box.
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Firefox 72+ consistently highlights
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only the image content box itself.
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*/
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div
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{
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font-size: 300px;
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}
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img::selection
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{
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background-color: red;
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}
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span#masking
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{
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background-color: white;
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display: inline-block;
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height: 100px;
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position: relative;
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right: 100px;
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width: 100px;
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}
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</style>
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<script>
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function startTest()
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{
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var targetRange = document.createRange();
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/* We first create an empty range */
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targetRange.selectNodeContents(document.getElementById("test"));
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/* Then we set the range boundaries to the children of div#test */
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window.getSelection().addRange(targetRange);
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/* Finally, we now select such range of content */
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document.documentElement.className = "";
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}
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</script>
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<body onload="startTest();">
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<p>Test passes if there is nothing below.
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<div id="test"><img src="support/100x100-red.png" alt="Image download support must be enabled"><span id="masking"></span></div>
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