containing-block-004

Containing block for static positioned elements is nearest block-level ancestor

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Assertion
If the element's position is 'static', the containing block is formed by the content edge of the nearest block-level ancestor box.

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: Containing block for static positioned elements is nearest block-level ancestor</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#containing-block-details">
 7         <meta name="flags" content="">
 8         <meta name="assert" content="If the element's position is 'static', the containing block is formed by the content edge of the nearest block-level ancestor box.">
 9         <style type="text/css">
10             #div1
11             {
12                 background: red;
13                 display: block;
14                 height: 100px;
15                 width: 100px;
16             }
17             div div
18             {
19                 background: green;
20                 height: 100%;
21                 position: static;
22                 width: 100%;
23             }
24         </style>
25     </head>
26     <body>
27         <p>Test passes if there is no red visible on the page.</p>
28         <div id="div1">
29             <div></div>
30         </div>
31     </body>
32 </html>