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: Height determination for block-level non-replaced elements in normal flow when 'overflow' does not compute to 'visible' and elements' margins collapse</title>
5 <link rel="author" title="Microsoft" href="http://www.microsoft.com/">
6 <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#normal-block">
7 <meta name="flags" content="">
8 <meta name="assert" content="The 'height' is the distance between the top border edge of the top most block-level child box that doesn't have margins collapsed, and the bottom border edge of the bottommost block-level child that doesn't have margins collapsed. When a block-level non-replaced element is in normal flow, 'overflow' does not compute to 'visible' but has been propagated to the viewport and the 'height' is 'auto'.">
9 <style type="text/css">
10 html, body
11 {
12 overflow: scroll;
13 }
14 #div1
15 {
16 position: relative;
17 }
18 #div2, #div3, #div4
19 {
20 width: 1in;
21 }
22 #div2, #div3
23 {
24 background: blue;
25 height: 0.5in;
26 }
27 #div2
28 {
29 border-top: 0.5in solid blue;
30 margin-top: 0.5in;
31 }
32 #div3
33 {
34 border-bottom: 0.5in solid blue;
35 margin-bottom: 0.5in;
36 }
37 #div4
38 {
39 background: blue;
40 height: 2in;
41 left: 1in;
42 position: absolute;
43 top: 0;
44 }
45 </style>
46 </head>
47 <body>
48 <p>Test passes if there is a blue square below.</p>
49 <div id="div1">
50 <div id="div2"></div>
51 <div id="div3"></div>
52 <div id="div4"></div>
53 </div>
54 </body>
55 </html>