| <!doctype html> | 
 | <html> | 
 |   <head> | 
 |     <title>CSS Test (Conditional Rules): In @supports, ::details-content can be parsed successfully</title> | 
 |     <link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com"> | 
 |     <link rel="help" href="https://drafts.csswg.org/css-conditional-3/#at-supports"> | 
 |     <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#details-content-pseudo"> | 
 |     <link rel="match" href="at-supports-001-ref.html"> | 
 |     <style> | 
 |       div { | 
 |         background: red; | 
 |         height: 100px; | 
 |         width: 100px; | 
 |       } | 
 |       @supports selector(input::details-content) { | 
 |         div { background-color:green; } | 
 |       } | 
 |     </style> | 
 |   </head> | 
 |   <body> | 
 |     <p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p> | 
 |     <div></div> | 
 |   </body> | 
 | </html> |