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Quelle test_cascade.html Sprache: HTML |
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<!DOCTYPE HTML> <!-- vim: set shiftwidth=4 tabstop=8 autoindent expandtab: --> <!-- This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. If a copy of the MPL was not distributed with this - file, You can obtain one at http://mozilla.org/MPL/2.0/. --> <html> <head> <title>Test for Author style sheet aspects of CSS cascading</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> <style type="text/css"> </style> </head> <body id="thebody"> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug </a> <div class="content_class" id="content" style="position:relative"></div> <pre id="test"> <script class="testbody" type="text/javascript"> /** Test for Author style sheet aspects of CSS cascading **/ var style_element = document.createElement("style"); var style_contents = document.createTextNode(""); style_element.appendChild(style_contents); document.getElementsByTagName("head")[0].appendChild(style_element); var div = document.getElementById("content"); var cs = window.getComputedStyle(div); var zindex = 0; /** * Given the selectors |sel1| and |sel2|, in that order (the "order" * aspect of the cascade), with declarations that are !important if * |imp1|/|imp2| are true, assert that the one that wins in the * cascading order is given by |winning| (which must be either 1 or 2). */ function do_test(sel1, imp1, sel2, imp2, winning) { var ind1 = ++zindex; var ind2 = ++zindex; style_contents.data = sel1 + " { z-index: " + ind1 + (imp1 ? "!important" :"") + " } " + sel2 + " { z-index: " + ind2 + (imp2 ? "!important" :"") + " } "; var result = cs.zIndex; is(result, String((winning == 1) ? ind1 : ind2), "cascading of " + style_contents.data); } // Test order, and order combined with !important do_test("div", false, "div", false, 2); do_test("div", false, "div", true, 2); do_test("div", true, "div", false, 1); do_test("div", true, "div", true, 2); // Test specificity on a single element do_test("div", false, "div.content_class", false, 2); do_test("div.content_class", false, "div", false, 1); // Test specificity across elements do_test("body#thebody div", false, "body div.content_class", false, 1); do_test("body div.content_class", false, "body#thebody div", false, 2); // Test specificity combined with !important do_test("div.content_class", false, "div", false, 1); do_test("div.content_class", true, "div", false, 1); do_test("div.content_class", false, "div", true, 2); do_test("div.content_class", true, "div", true, 1); function do_test_greater(sel1, sel2) { do_test(sel1, false, sel2, false, 1); do_test(sel2, false, sel1, false, 2); } function do_test_equal(sel1, sel2) { do_test(sel1, false, sel2, false, 2); do_test(sel2, false, sel1, false, 2); } // Test specificity of contents of :not() do_test_equal("div.content_class", "div:not(.wrong_class)"); do_test_greater("div.content_class.content_class", "div.content_class"); do_test_greater("div.content_class", "div"); do_test_greater("div:not(.wrong_class)", "div"); do_test_greater("div:not(.wrong_class):not(.wrong_class)", "div:not(.wrong_class)"); </script> </pre> </body> </html>
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2026-04-04