加一句代码就可以实现相对定位 <center> <table width="400" height="300" border="0" cellpadding="0" cellspacing="0"> <tr> <td bgcolor="#CCCCCC"><span style="position:relative"> <div id="Layer1" style="position:absolute; width:200px; height:38px; z-index:1; background-color: #00FFFF; left: 11px; top: 0px; layer-background-color: #00FFFF; border: 1px none #000000;">这是应用了相对定位的</div> </span></td> </tr> <tr> <td bgcolor="#666666"> <div id="Layer2" style="position:absolute; width:200px; height:38px; z-index:1; background-color: #00FF00; left: 200px; top: 175px; layer-background-color: #00FF00; border: 1px none #000000;">这是没有应用的</div> </td> </tr> </table> </center>
