*{margin: 0;padding: 0;}
.toubu{
	width: 100vw;
	height: 15vw;
	background: #2F4056;
	color: #ffffff;
	text-align: center;
	line-height: 15vw;
}

.banhao{
	position: relative;
	top: 20vw;
	width: 100vw;
	height: 15vw;
	text-align: center;
	line-height: 15vw;
}