| <!DOCTYPE html> |
| <html> |
| <meta charset="utf-8"> |
| <title>CSS-Writing Modes Test: propagation of the writing-mode property from body to root</title> |
| <link rel="author" title="Ting-Yu Lin" href="tlin@mozilla.com"> |
| <link rel="author" title="Mozilla" href="http://www.mozilla.org/"> |
| <link rel=help href="https://drafts.csswg.org/css-writing-modes-3/#principal-flow"> |
| <link rel="match" href="wm-propagation-body-dynamic-change-002-ref.html"> |
| <meta name=assert content="The writing mode of the newly inserted body must be propagated to the root."> |
| |
| <script> |
| function runTest() { |
| document.body.offsetHeight; |
| |
| var newBody = document.createElement("body"); |
| newBody.id = "new-body"; |
| var oldBody = document.getElementById("old-body"); |
| |
| /* Insert a new <body> before the old one, which should become the primary <body>. */ |
| document.documentElement.insertBefore(newBody, oldBody); |
| } |
| </script> |
| |
| <style> |
| #new-body { |
| /* This writing-mode should propagate to the root element. */ |
| writing-mode: vertical-rl; |
| margin: 0; |
| } |
| |
| #old-body { |
| writing-mode: horizontal-tb; |
| inline-size: 100px; |
| } |
| |
| div { |
| background-color: blue; |
| height: 100px; |
| width: 100px; |
| } |
| </style> |
| |
| <body id="old-body" onload="runTest();"> |
| <div></div> |
| <p>Test passes if you see a blue square in the upper-right corner of the page</p> |
| </body> |
| </html> |