.btop {
	z-index: 1000000;
	position: fixed;
	left: 0;
	bottom: 70px;
	width: 34%;
	margin-left: 60%;
	opacity: 0.5;
	filter: alpha(opacity=50);
}
@media screen and (max-width:310px){
    .btop {
        margin-left: 47%;
    }
}
@media screen and (max-width:640px){
    .btop {
        margin-left: 55%;
    }
}
.btop:hover {
	opacity: 1;
	filter: alpha(opacity=100);
	cursor: pointer;
}
.btop-but {
	z-index: 1000000;
	position: absolute;
	display: block;
	bottom: 0;
	margin: 0 0 0 100%;
	padding: 17px 25px 20px 25px;
	color: white;
	background: #E14658 url(btop.png) no-repeat 50% 11px;
	border-radius: 5px;
	white-space: nowrap;
}