Css实现固定表头

<!doctype html public "-//w3c//dtd html 4.0 strict//en">

<html>

<head>

<style>

body {

background-color: #F0F0F0 ;

font: 11px "verdana","Arial";

width:90%;

margin-left:auto;

margin-right:auto;

}

.tScroll {

border: 1px #7494BF solid;

background-color: #ffffff;

overflow: scroll;

overflow-x:hidden;

height:100px;

cursor: default;

}

tr.tableHead {

position:relative;

background-color:#BFCEE7;

height: 16px;

text-align: center;

}

td {

font: 11px "Verdana", "Arial";

}

td.asBtn{

border: #7494BF solid;

border-width: 0px 1px 1px 0px;

}

table {

border:0px;

width:100%;

}

</style>

</head>

<body>

<div class="tScroll" >heading6</td>

</tr>

<tr><td>cell1</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

<tr><td>cell n</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td><td>cell</td></tr>

</table>

</div>

</body>

</html>