40 lines
1.3 KiB
HTML
40 lines
1.3 KiB
HTML
<!DOCTYPE html>
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<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
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<link rel="help" href="https://drafts.csswg.org/cssom/#the-csspagerule-interface">
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<title>Add / remove declarations inside CSSMarginRule</title>
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<style id="sheet">
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@page {
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@top-center {}
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}
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</style>
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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>
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var sheet = document.getElementById("sheet").sheet;
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var marginRule = sheet.rules[0].cssRules[0];
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var style = marginRule.style;
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test(() => {
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assert_equals(style.length, 0);
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style.setProperty("widows", "7");
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assert_equals(style.length, 1);
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assert_equals(style.widows, "7");
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style.setProperty("margin-left", "50%");
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assert_equals(style.length, 2);
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assert_equals(style.marginLeft, "50%");
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style.setProperty("margin-left", "100px");
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assert_equals(style.length, 2);
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assert_equals(style.marginLeft, "100px");
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style.setProperty("margin", "auto");
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assert_equals(style.length, 5);
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assert_equals(style.marginLeft, "auto");
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}, "Add declarations");
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test(() => {
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assert_equals(style.length, 5);
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style.removeProperty("widows");
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assert_equals(style.length, 4);
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style.removeProperty("margin");
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assert_equals(style.length, 0);
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}, "Remove declarations");
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</script>
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