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diff --git a/testing/web-platform/tests/css/css-writing-modes/wm-propagation-body-044.html b/testing/web-platform/tests/css/css-writing-modes/wm-propagation-body-044.html new file mode 100644 index 0000000000..d7a3f46f3b --- /dev/null +++ b/testing/web-platform/tests/css/css-writing-modes/wm-propagation-body-044.html @@ -0,0 +1,90 @@ +<!DOCTYPE html> + + <meta charset="UTF-8"> + + <title>CSS Writing Modes Test: 'writing-mode: horizontal-tb' 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-3/#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-044-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. We also check that the computed value is unaffected by inheriting it into a pseudo element."> + + <!-- + 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: vertical-lr; + } + + html::after + { + content: "This text must be written vertically, below the orange square."; + display: block; + } + + body + { + writing-mode: horizontal-tb; + } + + img#orange-square + { + height: 100px; + padding-right: 1em; + vertical-align: top; + width: 100px; + } + + h1#second-test-condition + { + background-color: red; + color: yellow; + } + </style> + + <script> + function verifyComputedValueDocRoot() + { + if(getComputedStyle(document.documentElement)["writing-mode"] == "vertical-lr") + { + 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();"> + + <p><img id="orange-square" src="support/swatch-orange.png" alt="Image download support must be enabled"><img src="support/wm-propagation-body-003-exp-res.png" width="340" height="37" alt="Image download support must be enabled"></p> + + <!-- + The image says: + Test passes if there is an orange square + in the <strong>upper-left corner</strong> of the page. + --> + + <h1 id="second-test-condition">FAIL</h1> |