body{
	background: url(../img/bg3.jpg);
	background-size: 100%;
}
header h1{
	text-align: center;
	line-height: 40px;
	margin: 20px auto;
	letter-spacing: 10px;
}
main{
	width: 90%;
	margin: 0 auto;
}
main h2{
	line-height: 35px;
	padding: 10px 20px;
}
main img{
	margin: 20px auto;
}
main p{
	line-height: 24px;
	background-color: rgba(0,0,0,0.1);
	padding: 10px;
}
main ul{
	width: 150px;
	float: left;
	margin-top: 110px;
}
main ul li{
	width: 130px;
	border-radius: 5px;
	border: 1px solid gray;
	line-height: 40px;
	text-align: center;
	margin-bottom: 15px;
}
main ul li a{
	color: #000;
	display: block;
}
main ul li a:hover{
	background-color: rgba(0,0,0,0.3);
	color: snow;
}
main .right{
	width: 80%;
	float: left;
	margin-left: 50px;
}