<html xmlns="
<head>
<meta http-equiv="Content-Type" content="text/html charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript" src="jquery.js"></script>
<style>
.{ padding:0 margin:0 list-style:none}
.htmlBox{ width:100% min-width:500px height:500px border:1px solid #A349A4 border-radius:5px}
.sskBox{ width:100% height:35px margin-top:150px border:1px solid #000 border-left:0 border-right:0}
.zc{ width:100px height:35px float:left}
.zj{ width:250px height:35px float:left border-left:1px solid #000 border-right:1px solid #000}
.yc{ height:35px float:right}
</style>
</head>
<body>
<div class="htmlBox">
<div class="sskBox">
<div class="zc">左边100</div>
<div class="zj">中间250</div>
<div class="yc">右边自适应</div>
</div>
</div>
</body>
<script>
tmntH()//加载的时候执行一次
$(window).resize(function() {tmntH()})//浏览器窗口变化时执行
function tmntH()
{
var ycw=$(".sskBox").width()-352+'px'//yc的宽度等于sskBox宽度-350-2(边框线)
//alert(div3)
$(".yc").css("width",ycw)
}
</script>
</body>
</html>
<form action="http://www.baidu.com/baidu" target="_blank"><div align="center">
<img src="https://gss0.bdstatic.com/70cFsjip0QIZ8tyhnq/search/img/baidulogo_clarity_80_29.gif" alt="Baidu" border="0" align="bottom"><input type=text name=word size=30>
<input type="submit" value="百度搜索">
</div>
</form>
把代码放在<body></body>标签之间运行一下。
昂，需要把背景图片定位截取出来，不过网上有方法，你可以去搜索下三种方法，具体解释，你可以去网上搜索一下，它会比我解释的更详细
div{ background:#FFF url(image) no-repeat top left}
div{ background:#FFF url(image) no-repeat 23px -23px}
background:#FFF url(image) no-repeat 50% 30%
