方法一：采用表格[IE]
方法二：采用frameset[NN4+,IE4+]
<HTML>
<HEAD>
<BODY>
<TABLE WIDTH="100%" HEIGHT="100%">
<TR>
<TD ALIGN="center" VALIGN="middle">
要居中的内容！
</TD>
</TR>
</TABLE>
</BODY>
</HTML>
<HEAD>
<BODY>
<TABLE WIDTH="100%" HEIGHT="100%">
<TR>
<TD ALIGN="center" VALIGN="middle">
要居中的内容！
</TD>
</TR>
</TABLE>
</BODY>
</HTML>
方法二：采用frameset[NN4+,IE4+]
<HTML>
<HEAD>
<STYLE>
</STYLE>
<SCRIPT>
var url = "你的页面.htm";
function centerFrame (url, width, height) {
if (top == window) {
var w = window.innerWidth ? window.innerWidth :
document.body.clientWidth;
var h = window.innerHeight ? window.innerHeight :
document.body.clientHeight;
var w0 = Math.floor((w - width) / 2);
var h0 = Math.floor((h - height) / 2);
var html = "";
html += "<FRAMESET border=0 ROWS="" + h0 + ", " + height + ", " + h0 +
"">";
html += "<FRAME SRC="about:blank">";
html += "<FRAMESET COLS="" + w0 + ", " + width + ", " + w0 + "">";
html += "<FRAME SRC="about:blank">";
html += "<FRAME NAME="main" SRC="" + url + "" SCROLLING="auto">";
html += "<FRAME SRC="about:blank">";
html += "<\/FRAMESET>";
html += "<FRAME SRC="about:blank">";
html += "<\/FRAMESET>";
document.open();
document.write(html);
document.close();
}
}
</SCRIPT>
</HEAD>
<BODY ONLOAD="centerFrame(url, 400, 400);">
<!-- 400,400是你页面内容的尺寸 -->
欢迎浏览！
</BODY>
</HTML>
<HEAD>
<STYLE>
</STYLE>
<SCRIPT>
var url = "你的页面.htm";
function centerFrame (url, width, height) {
if (top == window) {
var w = window.innerWidth ? window.innerWidth :
document.body.clientWidth;
var h = window.innerHeight ? window.innerHeight :
document.body.clientHeight;
var w0 = Math.floor((w - width) / 2);
var h0 = Math.floor((h - height) / 2);
var html = "";
html += "<FRAMESET border=0 ROWS="" + h0 + ", " + height + ", " + h0 +
"">";
html += "<FRAME SRC="about:blank">";
html += "<FRAMESET COLS="" + w0 + ", " + width + ", " + w0 + "">";
html += "<FRAME SRC="about:blank">";
html += "<FRAME NAME="main" SRC="" + url + "" SCROLLING="auto">";
html += "<FRAME SRC="about:blank">";
html += "<\/FRAMESET>";
html += "<FRAME SRC="about:blank">";
html += "<\/FRAMESET>";
document.open();
document.write(html);
document.close();
}
}
</SCRIPT>
</HEAD>
<BODY ONLOAD="centerFrame(url, 400, 400);">
<!-- 400,400是你页面内容的尺寸 -->
欢迎浏览！
</BODY>
</HTML>
