body{
	font-family: 'Noto Sans JP', sans-serif;
	color: #555;
	margin: 0;
	background-color: #fcfcfc;
}

.about > div > div.summary{
	padding-bottom: 5px;
	font-size: 22px;
	margin-top: 30px;
	margin-bottom: 10px;
	border-bottom: 3px solid #e5e3e4;
}

.about > div > div.operation-environment{
	margin-top: 10px;
}

.about > div > span{
	float: left;
}

.about > div > span.link > a{
	color: #0071BC;
}

#header-page-explain-about-id{
	position: absolute;
	line-height: 75px;
	margin-left: 25px;
	font-size: 20px;
	margin-right: 10px;
	font-weight: bold;
	padding-left: 15px;
}

#line {
    position: absolute;
    border-left: 1px solid #e5e3e4;
    margin-left: -15%;
    height: 34%;
    top: 34%;
}