紧急求助:如何实现背景图片自适应分辨率和IE窗口的调整
各位高手,请教一下,我这里有一个jsp的登录页面。页面上除了输入框和按钮外,就是背景图片。其中的输入框的位置都用的是相对位置。但IE或分辨率调整后,仍会发生输入框和背景图错位的情况。请教一下大家,如何才能让背景图片也随IE和分辨率的变化而变化呢??
请各位高手不吝赐教!!!!页面代码如下:
login.jsp:
<%@ page contentType="text/html;charset=gb2312" language="java" import="java.util.*,com.iproject.examsys.web.to.*" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
	if(request.getSession(true).getAttribute(UserSessionInfo.USER_SESSION)!=null){
		response.sendRedirect("examination/index");
	}
	response.setHeader("Pragma", "No-cache");
	response.setHeader("Cache-Control", "no-cache");
	response.setDateHeader("Expires", 0);
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
	<base href="<%=basePath%>">
	<title>系统登录</title>
	<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
	<meta http-equiv="keywords" content="四川省给排水协会">
	<meta http-equiv="description" content="考务管理系统">
	<link rel="stylesheet" type="text/css" href="css/styles.css">
	<script src="js/validation.js" type="text/javascript"></script>
</head>
<body class="loginBgGround">
	<center>
		<form action="login" method="post">
         	<table bordercolor="black" align="center" width="100%" height="100%">
             	<tr height="46.25%">
                 	<td colspan="7" width="100%">
                     </td>                 
                 </tr>
              	<tr height="1.875%">
                 	<td colspan="4" width="65.1%" >
                     </td>
                     <td width="6.5%">
                     </td>  
                     <td colspan="2" width="27%">
                     </td>                                                
                 </tr>
             	<tr height="4.375%">
                 	<td colspan="7" width="100%">
                     </td>                 
                 </tr>                                
             	<tr height="3.75%">
                 	<td width="33.5%">
                     </td>
                     <td width="29%">
                     	<input id="userName" class="inputTextStyle" value="13912345670">
                     </td>
                     <td width="1.9%">
                     </td>
                     <td colspan="3" rowspan="4" width="8.5%" height="11%" onclick="login()" class="button">
                     </td>
                     <td width="26%">