#social {
	position: fixed;
	left: 0;
	top: 140px;
	width: 60px;
	height: 320px;
	z-index: 999;
}
#social .social_item {
	display: inline-block;
}
#social .social_item:hover {
	background-repeat: no-repeat;
	background-position: 0 top;
}
#social .social_item a {
	width: 40px;
	height: 40px;
	display: block;
	text-decoration: none;
	background-color: #ddd;
	color: #000;
	font-size: 16px;
	text-align: center;
	margin: 2px 0;
	line-height: 40px;
}
#social .social_item a:hover {
	background-repeat: no-repeat;
	background-position: 0 top;
	color: #000;
}