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16d3bef255
1. when stacking without z-index, positioned > floated > normal flow 2. supports negative z-index 3. new stacking context formed when opacity < 1 (standard) 4. new stacking context formed for position:fixed (no standard yet, done in mobile webkit and chrome 22+)
102 lines
2.0 KiB
HTML
102 lines
2.0 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html>
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<head>
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<title>Stacking without z-index</title>
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<!-- https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Understanding_z_index/Stacking_without_z-index?redirectlocale=en-US&redirectslug=CSS%2FUnderstanding_z-index%2FStacking_without_z-index -->
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<script type="text/javascript" src="../../test.js"></script>
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<style type="text/css">
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div {
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font: 12px Arial;
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}
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span.bold { font-weight: bold; }
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#normdiv {
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height: 70px;
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border: 1px dashed #999966;
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background-color: #ffffcc;
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margin: 0px 50px 0px 50px;
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text-align: center;
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}
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#reldiv1 {
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opacity: 0.7;
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height: 100px;
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position: relative;
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top: 30px;
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border: 1px dashed #669966;
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background-color: #ccffcc;
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margin: 0px 50px 0px 50px;
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text-align: center;
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}
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#reldiv2 {
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opacity: 0.7;
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height: 100px;
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position: relative;
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top: 15px;
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left: 20px;
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border: 1px dashed #669966;
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background-color: #ccffcc;
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margin: 0px 50px 0px 50px;
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text-align: center;
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}
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#absdiv1 {
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opacity: 0.7;
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position: absolute;
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width: 150px;
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height: 350px;
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top: 10px;
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left: 10px;
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border: 1px dashed #990000;
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background-color: #ffdddd;
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text-align: center;
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}
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#absdiv2 {
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opacity: 0.7;
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position: absolute;
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width: 150px;
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height: 350px;
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top: 10px;
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right: 10px;
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border: 1px dashed #990000;
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background-color: #ffdddd;
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text-align: center;
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}
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</style></head>
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<body>
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<br /><br />
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<div id="absdiv1">
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<br /><span class="bold">DIV #1</span>
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<br />position: absolute;
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</div>
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<div id="reldiv1">
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<br /><span class="bold">DIV #2</span>
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<br />position: relative;
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</div>
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<div id="reldiv2">
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<br /><span class="bold">DIV #3</span>
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<br />position: relative;
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</div>
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<div id="absdiv2">
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<br /><span class="bold">DIV #4</span>
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<br />position: absolute;
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</div>
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<div id="normdiv">
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<br /><span class="bold">DIV #5</span>
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<br />no positioning
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</div>
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</body></html> |