.online{
	position: fixed;	
	right:0px;
	top:25%;
	z-index:100;
}
.bottom_tools {
	position:relative;
}
.bottom_tools>* {
	font: 0/0 a;
	display: block;
	margin-top: 3px;
	color: transparent;
	border: 0;
	background-color: transparent;
	text-shadow: none
}
.qr_img {
	position: absolute;
	top: -149px;
    left: -153px;
	max-width:none;
    display: none;
	width:150px;
	height:150px;
}

#scrollUp {
	width: 45px;
	height: 45px;
	background-image: url(../images/online.png);
	background-position: 0 -92px;
	display: none;
}
#scrollUp:hover {
	background-image: url(../images/online.png);
	background-position: 0 -138px;
}

.qr_tool {
	width: 45px;
	height: 45px;
	background-image: url(../images/online.png);
	background-position: 0 0;
	cursor: pointer;
}
.qr_tool:hover {
	width: 45px;
	height: 45px;
	background-image: url(../images/online.png);
	background-position: 0 -46px;
}