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https://drafts.csswg.org/css-values-4/#calc-serialize: > Sort the terms in the following order: > The number, if present > The percentage, if present > The dimensions, ordered by their units ASCII case-insensitive alphabetically > Comparison, trigonometric and exponential functions, in the order they appeared in the original expression. So em goes before px. I filed https://github.com/w3c/csswg-drafts/issues/4129 on the second part of that algorithm not matching any browser. These are tests that are marked as only failing in Firefox because we're the only following the spec. #funtimes Differential Revision: https://phabricator.services.mozilla.com/D38593 --HG-- extra : moz-landing-system : lando
31 lines
1.5 KiB
HTML
31 lines
1.5 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>CSS Backgrounds and Borders Module Level 4: parsing background-position-y with valid values</title>
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<link rel="help" href="https://drafts.csswg.org/css-backgrounds-4/#propdef-background-position-y">
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<meta name="assert" content="background-position-y supports the full grammar '[ center | [ top | bottom | y-start | y-end ]? <length-percentage>? ]#'.">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/css/support/parsing-testcommon.js"></script>
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</head>
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<body>
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<script>
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test_valid_value("background-position-y", "center");
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test_valid_value("background-position-y", "top");
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test_valid_value("background-position-y", "bottom");
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test_valid_value("background-position-y", "y-start");
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test_valid_value("background-position-y", "y-end");
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test_valid_value("background-position-y", "-20%");
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test_valid_value("background-position-y", "10px");
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test_valid_value("background-position-y", "0.5em");
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test_valid_value("background-position-y", "calc(10px - 0.5em)", "calc(-0.5em + 10px)");
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test_valid_value("background-position-y", "top -20%");
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test_valid_value("background-position-y", "bottom 10px");
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test_valid_value("background-position-y", "-20%, 10px");
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test_valid_value("background-position-y", "center, top, bottom");
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test_valid_value("background-position-y", "0.5em, y-start, y-end");
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test_valid_value("background-position-y", "calc(10px - 0.5em), top -20%, bottom 10px", "calc(-0.5em + 10px), top -20%, top 10px");
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</script>
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</body>
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</html>
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