div.box{
	width:680px;
	border-top: 2px solid #000000;
	border-right: 2px solid #000000;
	border-left: 2px solid #000000;
	padding: 0.5em;
}
.float{
float:left;
margin-right:0.5em;
margin-bottom:0.5em;
}
div.bn{
	width:100px;
	height:20px;
	padding:0.1em 0.1em 0.1em 18px;
	border-bottom:1px dotted #909090;
	magin:0.2em;
}
a:link {
	text-decoration: none;
}
a:hover {
	text-decoration: underline;
}
a:visited {
	text-decoration: none;
}