PVH / WWW-WebKit2-0.133 / t / test / attribute.html 
<!DOCTYPE html>
<html>
    <head>
        <title>test</title>
        <style type="text/css">
            #invisible { visibility: hidden; }
            #void { display: none; }
        </style>
    </head>
    <body>
        <div id="test" class="foo bar"></div>
        <div id="invisible">
            I'm invisible!
            <div id="invisible_child">Parent's invisible, so am I</div>
        </div>
        <div id="void">
            I'm void!
            <div id="void_child">Parent's void, so am I</div>
        </div>
        <a href="#">linktext</a>
        <a href="#"><span>inner_linktext</span></a>
        <select name="select">
            <option>foo</option>
            <option>bar</option>
            <option>baz</option>
        </select>
        <input name="checkbox" value="1" type="checkbox"/>
    </body>
</html>