#btnwrapper {
	width:750px;
	margin: 0 auto;
}
#btna {
	height:166px;
	width:166px;
	float:left;
}
ul, ol, li {
	margin: 0px;
	padding: 0px;
	list-style: none;
}
#btna li {
	height:166px;
	width:166px;
}
#btna li {
	height:166px;
	width:166px;
}
#btna ul {
	margin: 0;
	padding: 0px 0 0 0px;
	list-style: none;
	line-height: normal;
}
#btna li {
	display: inline;
	text-align: center;

}
#btna a {
	display: block;
	float: left;
	text-decoration: none;
	background: url(images/base.png) no-repeat 50% 50%;
		margin:10px;
}
#btna a:hover {
	background:url(images/btn_aca_1.png);
}
#btna a:active {
	background:url(images/btn_aca_1.png);
	color: #000;
}
img {
	border:0px;
}