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: Clearance calculations - clear box collapsing margins</title>
5 <link rel="author" title="Microsoft" href="http://www.microsoft.com/">
6 <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#flow-control">
7 <meta name="flags" content="">
8 <meta name="assert" content="When a cleared element has more top margin than the height of the floated element the margin is collpased with previous in-flow children. The element is then placed at the point of the resulting collapsed margin.">
9 <!-- C1 = H-MT2 -->
10 <!-- C2 = Max(M1, MT2, MB2) - M1 - MT2 -->
11 <style type="text/css">
12 div
13 {
14 font: 20px/1em Ahem;
15 width: 5em;
16 }
17 #parent
18 {
19 background: url('support/clear-clearance-calculation-003.png');
20 min-height: 7em;
21 position: relative;
22 }
23 #div1
24 {
25 margin-bottom: 1em;
26 }
27 #div2
28 {
29 float: left;
30 margin: 0;
31 }
32 #div3
33 {
34 background: red;
35 clear: left;
36 margin-bottom: 5em;
37 margin-top: 4em;
38 }
39 #div1, #div2, #div4
40 {
41 background: green;
42 height: 1em;
43 }
44 </style>
45 </head>
46 <body>
47 <p>Test passes if there is no red on this page.</p>
48 <div id="parent">
49 <div id="div1"></div>
50 <div id="div2"></div>
51 <div id="div3"></div>
52 <div id="div4"></div>
53 </div>
54 </body>
55 </html>