.abstract {
	margin: 30px 20px auto auto;
	padding-left: 10px;
	float: left;
}
.abstract li {
	list-style-type: none;
	text-align: center;
	width: 130px;
	margin: 10px;
}
.abstract li a {
	border: 1px solid #000000;
	padding: 7px;
	display: block;
	margin: auto;
	color: #000000;
}
.abstract li a:hover {
	background-color: #A6C0D0;
	color: #FFFFFF;
}