#back-top a { 
	opacity:0.2;		
	-webkit-transition: 1s; 
	-moz-transition: 1s; 
	transition: 1s;
}

#back-top a:hover { 		
	-webkit-transition: 1s; 
	-moz-transition: 1s; 
	transition: 1s;
	opacity:0.7;
}
#back-top img {
	position: fixed; 
	bottom: 5px;
	right: 15px;
	width: 128px;
	border-radius: 24px;
}

#back-top img:hover {
	box-shadow: 0 0 15px #cccccc;
}

#back-top {
	position: fixed; 
	bottom: 50px; 
	right: 40; 
	width: 48px; 
	height: 48px; 
	display: block; 	
	-webkit-transition: 1s; 
	-moz-transition: 1s; 
	transition: 1s;
}