<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>CSS Test: An @supports rule with balanced invalid syntax within parentheses must evaluate to false</title> <style type="text/css"> @page { font: italic 8pt sans-serif; color: gray; margin: 7%; counter-increment: page; @top-left { content: "CSS Conditional Rules Module Level 3 CR Test Suite"; } @top-right { content: "Test css-supports-022"; } @bottom-right { content: counter(page); } } </style> <link rel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au"/> <link rel="help" href="http://www.w3.org/TR/css3-conditional/#at-supports"/> <meta name="flags" content=""/> <meta name="assert" content="An @supports condition must successfully parse even if a declaration has an empty property value."/> <link rel="match" href="support/pass.xht"/> <style type="text/css"><![CDATA[ html { background-color: red } @supports (unknown:) or (color: green) { html { background-color: green } } ]]></style> </head> <body> </body> </html>