li.study div{
	display:none;
	position: relative;
	z-index:999;
	list-style-type: none;
	float:right;	
}
li.study a{
	position: relative;
	top:20px;
	right:100px;
	display:block;
	background:#DDDDDD;
	border:1px #666666 solid;
	width:50px;
	height:20px;
	text-decoration:none;
}
li.study:hover div{
	display:block;
}