美餐网的那个订餐车的效果,随屏幕滚动但不哆嗦的DIV。。网址:www.meican.com最好是基于jquery的。
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- 哪位大神能帮我写一下代码
<div id="topNavWrapper">
<div id="topNav">
xxxxxxxxxx
</div>
</div>
css:#topNavWrapper { width:900px;text-align: left;height: 40px;margin: 0px auto;z-index:100;_position: relative ;_top:0px;}
#topNav { width: 900px;float: left;display: block;z-index: 100;overflow: visible;position: fixed;top: 0px; /* position fixed for IE6 */_position: absolute;_top: expression(documentElement.scrollTop + "px");background:#ececec;border-bottom:1px #bdbdbd solid;border-right:1px #bdbdbd solid;height: 40px;}
$(window).scroll(function () {
var topPx = $(document).scrollTop(); $('#cateorderForm').css('position', 'absolute');
$('#cateorderForm').css('top', topPx);
if (topPx <= 160) {
$('#cateorderForm').css('position', '');
$('#cateorderForm').css('top', '160px');
}
}); </script>
IE6下才用你那抖动的方法。
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style>
#topNavWrapper {
width:959px;
text-align: left;
height: 40px;
margin: 0px auto;
z-index:100;
_position: relative ;
_top:0px;
}#topNav {
width: 959px;
float: left;
display: block;
z-index: 100;
overflow: visible;
position: fixed;
top: 150px;
_position: absolute;
_top: expression(documentElement.scrollTop + "px");
background:#ececec;
border:1px #bdbdbd solid;
height: 40px;
}
</style>
</head><body>
<div id="topNavWrapper">
<div id="topNav">
ssssssssssssssssssssssssssssssssssssssssss
</div>
</div>
<table width="960" border="0" align="center" cellpadding="0">
<tr>
<td height="40" align="center" bgcolor="#00CC99">asddasdas</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dsadsad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dsadsad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">asd</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">as</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">as</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dasd</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sa</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">ds</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">adasd</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sa</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">as</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dsadas</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
<tr>
<td height="40" align="center" bgcolor="#00CC99">asddasdas</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dsadsad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dsadsad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">asd</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">as</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">as</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dasd</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sa</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">ds</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">adasd</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sad</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">sa</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">as</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">dsadas</td>
</tr>
<tr>
<td height="30" align="center" bgcolor="#00CC99">d</td>
</tr>
</table>
</body>
</html>