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 - negative margins adjoining positive margins</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="">
8 <meta name="assert" content="Negative margins deduct from the maximum of the adjoining positive margin.">
9 <style type="text/css">
10 div div
11 {
12 height: 20px;
13 width: 50px;
14 }
15 #div1
16 {
17 background: blue;
18 margin-bottom: 2in;
19 }
20 #div2
21 {
22 background: orange;
23 margin-top: -2in;
24 }
25 </style>
26 </head>
27 <body>
28 <p>Test passes if there is no vertical space between the boxes.</p>
29 <div>
30 <div id="div1"></div>
31 <div id="div2"></div>
32 </div>
33 </body>
34 </html>