| <!doctype html> |
| <html lang=en> |
| <meta charset=utf-8> |
| <title>CSS-contain test: style containment on html prevents writing-mode propagation</title> |
| <link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net"> |
| <meta name=flags content=""> |
| <meta name=assert content="style containment on html prevents writing-mode propagation"> |
| <link rel="match" href="reference/contain-body-w-m-001-ref.html"> |
| <link rel=help href="https://drafts.csswg.org/css-contain-2/#contain-property"> |
| |
| <style> |
| html::before { |
| content: ""; |
| width: 100px; |
| height: 100px; |
| background: orange; |
| display: block; |
| } |
| p { writing-mode: horizontal-tb; margin: 0;} |
| body { |
| margin: 0; |
| width: 200px; |
| height: 200px; |
| writing-mode: vertical-rl; |
| } |
| html { |
| contain: style; |
| } |
| </style> |
| |
| <p>Test passes if the orange square is in the upper-left corner. |
