body{
	width: 1200px;
		background-color: #F0F0F0;
		padding: 2px;margin: 0 auto;
}
.top{
	background-color: #33CCFF;
}
.center{
text-align: center;
	align-items: center;
	float: center;
}
.header{
	width: 1000px;height: 50px;
	margin: 0 50px;
}
.logo{
	width: 300px ;height: 50px;float: right;
}
.logo img{
	height: 50px;
	border-radius: 50%;
}
.banner img{
	width: 500px;margin: 0 auto;
	border-radius: 50%;
}
.sign{
	width: 800px;text-align: center;
	font-family: verdana;
	margin: 0 auto;
}
.topit{
	text-align: center;
}
.topit span{
	font-family: 黑体;
	font-size: 400%;
	text-align: center;
	display: inline;
}
.ch{
	
}
.eng{
display: inline;
font-size: 450%;
color: #8FBC8F;text-align: center;
}