<!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><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>CSS Test: ID selector without value and no matching element</title> <link rel="author" title="Microsoft" href="http://www.microsoft.com/" /> <link rel="help" href="http://www.w3.org/TR/CSS21/selector.html#attribute-selectors" /> <meta name="flags" content="" /> <meta name="assert" content="Attribute selector without a value matches any element which has that attribute set." /> <style type="text/css"> [id] { color: red; } </style> </head> <body> <p>Test passes if there is no red visible on the page.</p> <div>Filler Text</div> </body> </html>