.gotop {
    position: fixed;
    bottom: 95px;
    right: 0;
    width: 40px;
    height: 36px;
    border-radius: 5%;
    text-align: center;
    line-height: 35px;
    background-image: linear-gradient(to top, #6fa7cf 0%, #628ba9 100%);
    color: #FFF;
    cursor: pointer;
    z-index: 777;
    width: 0;
    align-content: 50% 0 0 50%;
    transition: all .3s ease;
    overflow: hidden;
    font-size: 24px;
    opacity: 0.75;
}

.gotop_m {
	
   position: fixed;
	bottom: 20vw;
	right: 0;
	width: 40px;
	height: 40px;
	text-align: center;
	line-height: 40px;
	background-image: linear-gradient(to top, #6fa7cf 0%, #628ba9 100%);
	color:#FFF;
	cursor: pointer;
	z-index: 777;
	width: 0;
	align-content: 50% 0 0 50%;
	transition: all .3s ease;
	overflow: hidden;
}