a.on_top { opacity:0.6; display: none;}
a.on_top:hover{
	background-color: #007bb6;
	color: #fff;
	border: 1px solid #007bb6;
	opacity:1;
}
a.on_top i{ font-size: 20px;}
a.on_top {
	border-radius: 6px;
	background-color: #333333;
	padding: 10px 20px;
	white-space: nowrap; color: #fff;
	position: fixed;
	bottom: 75px;
	right: 30px;
	height: 44px;
}

.fa {
    display: inline-block;
    font-family: FontAwesome;
    font-style: normal;
    font-weight: normal;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}