right是无法只适应填满剩余的高度和宽度的，必须设定right的高度，让right的高度大于left的的高度。
<style>
#main{
width:100%
height:60px
float:left
background:#0F0
}
#left{
height:50px
width:200px
background:#90F
float:left
}
#right{
width:100%
background:#FF0
height:200px
}
</style>
</head>
<body>
<div id="main"></div>
<div id="left">222222222222</div>
<div id="right">11111111111111</div>
</body>
</html>
<html><head>
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta http-equiv="content-type" content="text/htmlcharset=utf-8" />
<title>div铺满屏</title>
</head>
<body>
<div style="border:solid 1px redwidth:100%height:100%">
</div>
</body>
</html>
