| <!DOCTYPE html> | |
| <meta charset="UTF-8"> | |
| <title>CSS Writing Modes Test: 'writing-mode: sideways-lr' set to <body> element propagates to viewport</title> | |
| <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> | |
| <link rel="help" href="https://www.w3.org/TR/css-writing-modes-4/#principal-flow" title="8. The Principal Writing Mode"> | |
| <!-- | |
| Issue 3066: [css-writing-modes] Does vertical writing mode of an HTML body | |
| element cause an orthogonal flow? | |
| https://github.com/w3c/csswg-drafts/issues/3066 | |
| --> | |
| <link rel="match" href="wm-propagation-body-035-ref.html"> | |
| <meta name="assert" content="This test checks that when the root element has a <body> child element, then the principal writing mode is instead taken from the values of writing-mode and direction on the first such child element instead of taken from the root element. Also, a small script in this test verifies that the computed value of 'writing-mode' of the root element itself is not affected by such propagation."> | |
| <!-- | |
| Tests 032 to 035: html's writing-mode is not specified | |
| Tests 036 to 039: html's writing-mode is specified as horizontal-tb | |
| Tests 040 to 043: html's writing-mode is specified as vertical-rl | |
| Tests 044 to 047: html's writing-mode is specified as vertical-lr | |
| Tests 048 to 051: html's writing-mode is specified as sideways-rl | |
| Tests 052 to 055: html's writing-mode is specified as sideways-lr | |
| --> | |
| <style> | |
| html | |
| { | |
| writing-mode: horizontal-tb; | |
| } | |
| body | |
| { | |
| writing-mode: sideways-lr; | |
| } | |
| div | |
| { | |
| background-color: teal; | |
| height: 100px; | |
| width: 100px; | |
| } | |
| h1#second-test-condition | |
| { | |
| background-color: red; | |
| color: yellow; | |
| } | |
| </style> | |
| <script> | |
| function verifyComputedValueDocRoot() | |
| { | |
| if(getComputedStyle(document.documentElement)["writing-mode"] == "horizontal-tb") | |
| { | |
| document.getElementById("second-test-condition").style.display = "none"; | |
| }; | |
| /* | |
| If the computed value of 'writing-mode' of the root element | |
| itself is not affected by such propagation, then the big FAIL | |
| word will not be displayed. | |
| */ | |
| } | |
| </script> | |
| <body onload="verifyComputedValueDocRoot();"> | |
| <div></div> | |
| <p><img src="support/wm-propagation-body-035-exp-res.png" width="322" height="38" alt="Image download support must be enabled"> | |
| <!-- | |
| The image says: | |
| Test passes if there is a teal square in | |
| the <strong>lower-left corner</strong> of the page. | |
| --> | |
| <h1 id="second-test-condition">FAIL</h1> |