#main{
	width: 1200px;
	background: rgba(4,19,47,0.7);
	margin: auto;
	border-bottom: 5px;
	position: relative;
	margin-top: 0;
	border-top: 1px solid rgba(255,255,255,0.2);
	text-align: center;
}
.main{
	max-width: 1100px;
	color: #fff;
	padding: 10px;
	margin: auto;
	background: rgba(255,255,255,0.6);
	border-radius: 10px;
	margin-top:  30px;
	overflow: hidden;
}
.main p img{
	width: 400px;
	height:200px;
	 float: right;
	 padding: 15px 15px;
}
.main h1{
	text-align: left;
}
.main p{
		padding: 5px;
		text-align: left;
		line-height: 20px;
		
	}
	pre{
		text-align: left;
		font-size: 15px;
	}
	div{
		text-align: left;
		font-size: 15px;
	}
	
ol li{
	margin-left: 15px;
}
.main>ul>li{
	margin-left: 15px;
}