.catalog1 {
	z-index:1;
	margin-bottom:40px;
}
.catalog1_left {
	width:340px;
	z-index:1;
}
.catalog1_left h2 {
	color:#000;
	font-size:20px;
	padding:20px;
	padding-top:0;
	font-weight:500;
}
.catalog1_menu {
	background:#FAFAFA;
	z-index:1;
	border-right:4px solid #D80000;
	padding:20px;
}

.catalog1_right_div {
	width:calc(100% - 340px);
	padding:20px 5px; padding-top:0;
}
.catalog1_right_div h3 {
	font-size:20px;
	color:#000;
	text-align:center;
	font-weight:500;
	margin-bottom:18px;
	margin-top:0;
}

@media only screen and (max-width:880px) {
	.catalog1_right_div{
		width:100%;
	}
	.catalog1_left {
		width:100%;
		margin-bottom:40px;
	}
}