| <!doctype html> | |
| <html lang=en> | |
| <meta charset=utf-8> | |
| <title>CSS-contain test reference</title> | |
| <link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net"> | |
| <style> | |
| html::before { | |
| content: ""; | |
| width: 100px; | |
| height: 100px; | |
| background: orange; | |
| display: block; | |
| } | |
| body { margin: 0; } | |
| p { | |
| margin: 0; | |
| width: 200px; | |
| height: 200px; | |
| } | |
| </style> | |
| <p>Test passes if the orange square is in the upper-left corner. |