| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <title>CSS Writing Modes Test: Computed writing-mode for html element when writing mode for body propagated to viewport</title> |
| <link rel="author" title="Rune Lillesveen" href="mailto:rune@opera.com"> |
| <link rel="help" href="https://www.w3.org/TR/css-writing-modes-3/#principal-flow"> |
| <meta name="assert" content="Test that propagating writing-mode from body to viewport does not affect the computed writing-mode of the html element"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| .vertical-lr { writing-mode: vertical-lr } |
| </style> |
| <body class="vertical-lr"> |
| <script> |
| test(function() { |
| assert_equals(getComputedStyle(document.body).writingMode, "vertical-lr"); |
| }, "Check computed writing-mode for body element."); |
| |
| test(function() { |
| assert_not_equals(getComputedStyle(document.documentElement).writingMode, "vertical-lr"); |
| }, "Check computed writing-mode for html root element."); |
| |
| test(function() { |
| document.body.className = ""; |
| assert_not_equals(getComputedStyle(document.body).writingMode, "vertical-lr"); |
| }, "Check computed writing-mode for body element when style no longer applies."); |
| </script> |
