<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>CSS Test: Solving width for block-level non-replaced elements in normal flow with multiple properties with 'auto' values</title> <link rel="author" title="Microsoft" href="http://www.microsoft.com/"> <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#blockwidth"> <link rel="match" href="reference/block-non-replaced-width-005-ref.htm"> <meta name="flags" content=""> <meta name="assert" content="If 'width' is set to 'auto', any other 'auto' values become '0' and the 'width' is computed based on remaining space which includes any negative width."> <style type="text/css"> body { margin: 0; } #div1 { background: red; width: 100%; } div div { background-color: green; border: 10px solid green; margin: 0 auto; padding: 0; height: 20px; width: auto; } </style> </head> <body> <p>Test passes if a filled green rectangle spans the entire width of the page and if there is <strong>no red</strong>.</p> <div id="div1"> <div></div> </div> </body> </html>