.gotop {
	position: fixed;
	bottom: 110px;
	right: 0;
	width: 40px;
	height: 40px;
	text-align: center;
	line-height: 40px;
	background-image: linear-gradient(to right, #5d536d 0%, #2c223c 100%);
	color:#FFF;
	cursor: pointer;
	z-index: 51;
	width: 0;
	align-content: 50% 0 0 50%;
	transition: all .3s ease;
	overflow: hidden;
}

.gotop_m {
   position: fixed;
	bottom: 20vw;
	right: 0;
	width: 40px;
	height: 40px;
	text-align: center;
	line-height: 40px;
	background-image: linear-gradient(to right, #5d536d 0%, #2c223c 100%);
	color:#FFF;
	cursor: pointer;
	z-index: 51;
	width: 0;
	align-content: 50% 0 0 50%;
	transition: all .3s ease;
	overflow: hidden;
}