third_party/WebKit/LayoutTests/fast/css/margin-collapse-abspos-negmargin.htm

   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 - absolute positioning and siblings</title>
   5         <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins">
   6         <meta name="flags" content="ahem image">
   7         <meta name="assert" content="Absolutely positioned boxes do not collapse margins with siblings.">
   8         <style type="text/css">
   9             #div1
  10             {
  11                 border-top: 1em solid green;
  12                 font: 20px/1em Ahem;
  13                 height: 3em;
  14                 width: 5em;
  15             }
  16             div div
  17             {
  18                 height: 1em;
  19                 width: 5em;
  20             }
  21             #div2
  22             {
  23                 margin-bottom: -5em;
  24             }
  25             #div3
  26             {
  27                 margin-top: 10em;
  28                 background: green;
  29                 position: absolute;
  30             }
  31             #div4
  32             {
  33                 top: 12em;
  34                 height: 1em;
  35                 width: 5em;
  36                 background: red;
  37                 position: absolute;
  38             }
  39         </style>
  40     </head>
  41     <body>
  42         <p>Test passes if there is no red visible on the page.</p>
  43         <div id="div4"></div>
  44         <div id="div1">
  45             <div id="div2"></div>
  46             <div id="div3"></div>
  47         </div>
  48     </body>
  49 </html>