.toubu{
	height:100px;
	weight:400px;
	border:1px solid green;
	background-color:#78cc00;
	}
	li{
		float:left;
		list-style:none;
		margin-right:100px;
		height:40px;
		weight:40px;
		color:#FFF;
		text-align:center;
		line-height:40px;
		font-size:20px;
		}
	
.zhongjian{
	height:800px;
	border:1px solid green;
	
	}
	 .box{
		width:500px;
		border:1px solid green;
		margin:100px auto; 
		 
		 }
	  .box h3{
		padding-left:20px;
		color:white;
		background-color:blue;
		font-size:16px;
		height:35px;
		line-height:35px; 
		 }
	.box form{
		padding:20px 10px;
		}
.dibu{
	height:80px;
	border:1px solid green;
	text-align:center;
	background-color:#78cc00;
	
	}