z-index-stack-003

Z-index - stacking levels of positioned elements versus floated elements

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Assertion
Positioned elements should be painted over floated elements. A positioned descendant with 'z-index: auto' has a greater stacking level than non-positioned floated elements.

Source

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
 2 <html>
 3 
 4  <head>
 5 
 6   <title>CSS Test: Z-index - stacking levels of positioned elements versus floated elements</title>
 7 
 8   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
 9   <link rel="help" title="Section 9.9.1 Specifying the stack level: the 'z-index' property" href="http://www.w3.org/TR/CSS21/visuren.html#z-index">
10   <meta content="" name="flags">
11   <meta content="Positioned elements should be painted over floated elements. A positioned descendant with 'z-index: auto' has a greater stacking level than non-positioned floated elements." name="assert">
12 
13   <style type="text/css">
14    #rel-pos-containing-block {position: relative;}
15 
16    #yellow-overlapping-abs-pos
17    {
18    background-color: yellow;
19    height: 100px;
20    left: 60px;
21    position: absolute;
22    top: 60px;
23    width: 100px;
24    z-index: auto;
25    }
26 
27    #blue-first-float
28    {
29    background-color: blue;
30    float: left;
31    height: 100px;
32    width: 100px;
33    }
34 
35    #orange-second-float
36    {
37    background-color: orange;
38    float: left;
39    height: 100px;
40    margin-left: -70px;
41    margin-top: 30px;
42    width: 100px;
43    }
44   </style>
45 
46  </head>
47 
48  <body>
49 
50   <p>Test passes if the boxes are partially stacked on top of each other and if they are stacked in the following order <strong>from bottom to top: blue, orange, yellow</strong>.</p>
51 
52   <div id="rel-pos-containing-block">
53    <div id="yellow-overlapping-abs-pos"></div>
54    <div id="blue-first-float"></div>
55    <div id="orange-second-float"></div>
56   </div>
57 
58  </body>
59 </html>