html {
	font-size: 100px;
}

body {
	margin: 0;
	padding: 0;
	background-color:#000000;
	font-family: "Microsoft YaHei"
}


.container {
	position: relative;
	max-width: 720px;
	margin: 0 auto;
	background-color:0;
}

.support a{
	position: fixed;
	top: 25%;
	right: 2%;
	width: 1rem;
	height: 1rem;
	background-image: url("../image/support.webp");
	background-size: 100% 100%;
	z-index: 999;
}

.container .downBtn{
	position: absolute;
	top: 21%;
	left: 20%;
	width: 60%;
	height: 1rem;
	background-size: 100% 100%;
	background-repeat: no-repeat;
}