<!doctype html> <meta charset="utf-8"> <title>CSSOM Should correctly honor property restrictions</title> <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> <link rel="author" title="Mozilla" href="https://mozilla.org"> <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1665816"> <link rel="help" href="https://drafts.csswg.org/css-page-3/#conform-partial"> <link rel="help" href="https://drafts.csswg.org/css-animations/#keyframes"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <style> @page { margin-top: 10px; transform: scale(1); } @keyframes foo { from { margin-top: 10px; animation-name: none; } } </style> <script> test(function() { let rule = document.styleSheets[0].cssRules[0]; assert_equals(rule.type, CSSRule.PAGE_RULE, "Should be a page rule"); assert_equals(rule.style.length, 1, "Transform doesn't quite apply to pages"); assert_equals(rule.style.marginTop, "10px", "Should have a margin-top declaration"); rule.style.setProperty("transform", "scale(1)"); assert_equals(rule.style.getPropertyValue("transform"), "", "Shouldn't have been able to set the transform property via setProperty"); assert_equals(rule.style.length, 1, "Shouldn't have been able to set transform via setProperty"); rule.style.cssText = "margin-bottom: 10px; transform: scale(1);"; assert_equals(rule.style.length, 1, "Should not have been able to set transform via cssText"); assert_equals(rule.style.marginBottom, "10px", "Should have a margin-bottom declaration"); }, "@page"); test(function() { let rule = document.styleSheets[0].cssRules[1].cssRules[0]; assert_equals(rule.type, CSSRule.KEYFRAME_RULE, "Should be a keyframe rule"); assert_equals(rule.style.length, 1, "animation-name doesn't apply to keyframes"); assert_equals(rule.style.marginTop, "10px", "Should have a margin-top declaration"); rule.style.setProperty("animation-name", "none"); assert_equals(rule.style.getPropertyValue("animation-name"), "", "Shouldn't have been able to set the animation-nameproperty via setProperty"); assert_equals(rule.style.length, 1, "Shouldn't have been able to set animation-name via setProperty"); rule.style.cssText = "margin-bottom: 10px; animation-name: none;"; assert_equals(rule.style.length, 1, "Should not have been able to set animation-name via cssText"); assert_equals(rule.style.marginBottom, "10px", "Should have a margin-bottom declaration"); }, "@keyframe"); </script>