@charset "utf-8";
#opticalSystem {
	margin-bottom: 20px;
	margin-top: 10px;
	margin-left: 5px;
}
#sidemenu {
	float: left;
	width: 187px;
}
#sidemenu ul {
	margin: 0px;
	padding: 0px;
	list-style-type: none;
}
#sidemenu li {
	margin: 0px;
	padding: 0px;
	display: inline;
}
#sidemenu a {
	display: block;
}
#mainContents {
	float: left;
	width: 770px;
	padding-bottom: 20px;
}
#mainContents p {
	line-height: 1.5;
}

/*commonclass*/
.clearfix:after {
	content: ".";
	display: block;
	height: 0;
	clear: both;
	visibility: hidden;
}
.clearfix {
	display: inline-block;
	min-height: 1%;  /* for IE 7*/
}
/* Hides from IE-mac \*/
* html .clearfix {
	height: 1%;
}
.clearfix {
	display: block;
}
/* End hide from IE-mac */
.overimage {
	border-top-style: none;
	border-right-style: none;
	border-bottom-style: none;
	border-left-style: none;
}
#contents {
	width: 960px;
}
.totop {
	text-align: right;
	width: 733px;
	margin-top: 30px;
	clear: both;
}