margin-collapse-027

Margin collapsing - bottom margin not collapse when cleared

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Flags
ahem, image
Assertion
When a last sibling has clearance, its own margins collapse and it collapsed its margins with a subsequent sibling, the last sibling does not collapse its bottom margin with its parent's bottom margin.

Source

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
 2 <html>
 3     <head>
 4         <title>CSS Test: Margin collapsing - bottom margin not collapse when cleared</title>
 5         <link rel="author" title="Microsoft" href="http://www.microsoft.com/">
 6         <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins">
 7         <meta name="flags" content="ahem image">
 8         <meta name="assert" content="When a last sibling has clearance, its own margins collapse and it collapsed its margins with a subsequent sibling, the last sibling does not collapse its bottom margin with its parent's bottom margin.">
 9         <style type="text/css">
10             div
11             {
12                 font: 20px/1em Ahem;
13                 width: 5em;
14             }
15             #div1
16             {
17                 background: url('support/margin-collapse-4em-space.png');
18                 height: 6em;
19             }
20             #div2
21             {
22                 margin-bottom: 2em;
23             }
24             #div3, #div5
25             {
26                 margin-bottom: 1em;
27             }
28             #div3, #div6
29             {
30                 background: green;
31                 height: 1em;
32             }
33             #div4
34             {
35                 float: left;
36                 height: 1em;
37             }
38             #div5
39             {
40                 clear: both;
41                 margin-top: 1.5em;
42             }
43         </style>
44     </head>
45     <body>
46         <p>Test passes if there is no red visible on the page.</p>
47         <div id="div1">
48             <div id="div2">
49                 <div id="div3"></div>
50                 <div id="div4"></div>
51                 <div id="div5"></div>
52             </div>
53             <div id="div6"></div>
54         </div>
55     </body>
56 </html>