*{
	margin: 0;
	padding: 0;
	font-family: 'Comic Sans MS', 'Times New Roman', "楷体", Times, serif;
}
body{
	text-align: center;
	overflow: hidden;
}
#bg3-1{
	z-index: -1;
	width: 100%;
	height: 100%;
}
#bg3-1>img{
	width: 100%;
}
#title{
	color: white;
	font-size: 42px;
	position: absolute;
	top: 30%;
	left: 40%;
}
#typeWords{
	color: white;
	font-size: 32px;
	position: absolute;
	top: 45%;
	left: 43%;
}
#down{
	position: absolute;
	bottom: 10%;
	left: 48%;
}
#img{
	height: 50%;
	width: 50%;
}