*{font-family: "微软雅黑";}
#banner1{
	max-height:500px;
	height:auto;
	position: relative;
   	margin-top: 80px;
    background-color: #f8f8f8;
}
#banner{
	max-height:500px;
   	margin-top: 80px;
	position: relative;
    left: 0;
    top: 0;
    background-color: #f8f8f8;
}

#banner img{
	display:block;
	width:100%;
	height: 100%;
}

@media screen and (max-width: 480px) {
	#banner{
		margin-top: 45px;
	}
}

@media screen and (min-width: 481px) and (max-width:767px) {
	#banner{
		margin-top: 45px;
	}
}

@media screen and (min-width:768px){
	#banner{
		margin-top: 45px;
	}
}