<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>CSS Test: Floating non-replaced elements with 'auto' left margin</title> <link rel="author" title="Microsoft" href="http://www.microsoft.com/"> <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <!-- 2012-04-08 --> <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#float-width"> <link rel="match" href="reference/float-non-replaced-width-001-ref.htm"> <meta name="flags" content=""> <meta name="assert" content="If 'margin-left' is computed as 'auto' its used value is '0'."> <style type="text/css"> #div1 { border: solid black; height: 2in; width: 2in; } div div { background-color: blue; float: left; margin-left: auto; height: 1in; width: 1in; } </style> </head> <body> <p>Test passes if the filled blue square is in the <strong>upper-left corner</strong> of the hollow black square.</p> <div id="div1"> <div></div> </div> </body> </html>