<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: Position 'top' property defines the offset from the top edge of the containing block for absolute positioning</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-09-26 -->
<link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-top" />
<link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#position-props" />
<link rel="match" href="bottom-offset-001-ref.xht" />
<meta name="assert" content="The 'top' property, for absolute positioning, specifies the offset of the element in relation to the containing block's top edge. The containing block of an absolutely positioned element is formed by the padding box of its nearest (closest) positioned ancestor element." />
<style type="text/css">
div
{
height: 1in;
position: relative;
width: 1in;
}
#div1
{
background: blue;
}
#div2
{
background: white;
height: 0.5in;
position: absolute;
top: 0.5in;
width: 0.5in;
}
</style>
</head>
<body>
<p>Test passes if there is a blue square with its bottom-left corner missing.</p>
<div>
<div id="div1"></div>
<div id="div2"></div>
</div>
</body>
</html>
Codebase Browser
chromium