.to-top-btn{
	background:url("data:image/png;base64,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");
	background-size:cover;
	outline:none;
	opacity:.5;
	overflow:hidden;
	position:fixed;
	text-decoration:none;
	text-indent:100%;
	transition:opacity .6s linear,transform 0s linear .6s;
	right:10px;bottom:100px;
	width:35px;height:35px;
	z-index:999;
}
@media(min-width:768px){.to-top-btn{width:50px;height:50px}}
.to-top-btn.active{transition:opacity .6s linear,transform 0s linear}
.to-top-btn:not(.active){opacity:0;transform:scale(0)}
.to-top-btn:focus,
.to-top-btn:hover,
.to-top-btn:active{opacity:1}