.left_social{
	float:left;
	height:40px;
	width:188px;
	margin-bottom:10px;
	margin-top:10px;
	padding-left:40px;
}

.left_social a{ float:left; margin-right:5px;}

.so_bt1{width:30px; height:30px; background:url(facebook.png) top right no-repeat;}
.so_bt1:hover{width:30px; height:30px; background:url(facebook_hover.png) top right no-repeat;}
.so_bt2{width:30px; height:30px; background:url(twitter.png) top right no-repeat;}
.so_bt2:hover{width:30px; height:30px; background:url(twitter_hover.png) top right no-repeat;}
.so_bt3{width:30px; height:30px; background:url(linked.png) top right no-repeat;}
.so_bt3:hover{width:30px; height:30px; background:url(linked_hover.png) top right no-repeat;}