Posted in Javascript onMarch 21, 2013
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<style type="text/css">
*{ margin:0; padding:0;}
body{ _background-attachment:fixed; _background-image:url(about:blank);} //实现ie6不支持fixed方法
.header{ width:1000px; height:60px; margin:0 auto; text-align:center;}
.nav{ border:1px solid #ccc; border-radius:5px; overflow:hidden; height:30px; width:1000px; margin:10px auto; background:#fff;}
.nav li{ float:left; padding:0 10px; height:30px; line-height:30px;}
.nav li a{ text-decoration:none; color:#0CF;}
.nav li a:hover{ color:#000; text-decoration:underline;}
.nav ul{ list-style:none;}
.navFix{ position:fixed; left:0; top:0; _position:absolute; top:expression((offsetParent.scrollTop)+0); z-index:2;} //实现ie6不支持fixed方法
.content{ width:1000px; margin:10px auto;}
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<body>
<div class="header">
<h1>导航固定在页面顶部测试</h1>
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<p>11111</p>
<p>11111</p>
<p>11111</p><p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
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<p>11111</p>
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<p>11111</p>
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<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
<p>11111</p>
</div>
</body>
</html> jquery实现固定顶部导航效果(仿蘑菇街)
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