| <!doctype html> |
| <title>CSS Conditional Test: @supports selector() with pseudo-elements.</title> |
| <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> |
| <link rel="author" href="https://mozilla.org" title="Mozilla"> |
| <link rel="help" href="https://drafts.csswg.org/css-conditional/#at-supports"> |
| <link rel="match" href="at-supports-001-ref.html"> |
| <style> |
| div { |
| background-color:red; |
| height:100px; |
| width:100px; |
| } |
| @supports selector(::before) { |
| div { background: green }; |
| } |
| </style> |
| <p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p> |
| <div></div> |