@charset "UTF-8";
@media screen and （max-width: 768px） {
	#container{
		width: 100％;
		margin: 0;
	}
	#content{
		float: none;
		width: 100%;
	}
	#sidebar {
		float: none;
		display: inline-block;
	}
	section {
		width: 100%;
	}
}

.margin_b10 {
	margin-bottom: 10px;
}
.both {
	clear: both;
}
.margin_r20 {
	margin-right: 20px;
}
.margin_l20 {
	margin-left: 20px;
}
.margin_l10 {
	margin-left: 10px;
}
.margin_b30 {
	margin-bottom: 30px;
}
.margin_t20 {
	margin-top: 20px;
}
.font_90 {
	font-size: 90%;
}
.center {
	text-align: center;
}
.yellow_back {
	background-color: #FF9;
}
.border0 {
	border-top-style: none !important;
	border-right-style: none !important;
	border-bottom-style: none !important;
	border-left-style: none !important;
}