#w3
{
	position:fixed;
	right:10px;
	bottom:10px;
	width:40px;
	height:40px;
	background-color:#fff;
	border-radius:20px;
	-moz-border-radius:20px;
	-webkit-border-radius:20px;
	-opera-border-radius:20px;
	-khtml-border-radius:20px; 
	opacity:0.8;
	/*<=IE8*/
	filter:alpha(opacity=80);
}
#w3 a
{
	display:block;
	width:100%;
	height:100%;
}
#w3 img
{
	margin:4px;
	border:0;
}