如何改变表格中ContentPlaceHolder 控件占位大小？
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>母版页</title>
</head>
<body>
<center>
<form id="form1" runat="server">
<div>
<table style="width: 720px; position: relative">
<tr>
<td style="height: 86px; width: 753px;">
<img src="matherpig/bar5.gif" />
<img src="matherpig/bar4.gif" />
</td>
</tr>
<tr>
<td style="width: 753px; height: 30px">
<marquee scrollAmount=3() onmouseover=stop() onmouseout=start() style="width: 700px"><a style=color:#CC1365>本系统由郑州大学软件学院2006级软件开发共同开发！</a></marquee>
</td>
</tr>
<tr>
<td valign="top" style="height: 369px; width: 753px;" >
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</td>
</tr>
<tr>
<td style="height: 47px; width: 753px;">
对新网站的意见与建议请发邮件给<br />
使用思宁前必读 京ICP证030173号<br />
</td>
</tr>
<tr>
</tr>
<tr>
</tr>
</table>
</div>
<script Language="JavaScript">
var msg="此系统由郑州大学软件学院共同开发！";
var interval = 100;
var spacelen = 120;
var space10=" ";
var seq=0;
function Scroll() {
len = msg.length;
window.status = msg.substring(0, seq+1);
seq++;
if ( seq >= len ) {
seq = spacelen;
window.setTimeout("Scroll2();", interval );
}
else
window.setTimeout("Scroll();", interval );
}
function Scroll2() {
var out="";
for (i=1; i<=spacelen/space10.length; i++) out +=
space10;
out = out + msg;
len=out.length;
window.status=out.substring(seq, len);
seq++;
if ( seq >= len ) { seq = 0; };
window.setTimeout("Scroll2();", interval );
}
Scroll();
</script>
</form>
</center>
</body>
</html>
--------------------编程问答-------------------- <td valign="top" style="height: 369px; width: 753px;" >
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</td>
===================
你直接控制外面的td 就可以了，asp:ContentPlaceHolder 好像不能改变宽高，它是根据内容来动态改变的。
补充：.NET技术 , ASP.NET
