<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=320799 --> <head> <title>Test for Bug 320799</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=320799">Mozilla Bug 320799</a> <p id="display"> <select id="s" style="width: 100px; box-sizing: border-box; border: 0"> <option>This is a test, it really is a test I tell you</option> </select> <select id="s2"> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> <option>x</option> </select> <select id="s3"> <option>x</option> </select> </p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 320799 **/ is($("s").scrollWidth, 100, "Scroll width should not include dropdown contents"); is($("s2").clientWidth, $("s3").clientWidth, "Client width should not depend on the dropdown's vertical scrollbar"); </script> </pre> </body> </html>