.ch-grid {
	margin: 20px 0 0 0;
	padding: 0;
	list-style: none;
	display: block;
	text-align: center;
	width: 100%;
}

.ch-grid:after,
.ch-item:before {
	content: '';
    display: table;
}

.ch-grid:after {
	clear: both;
}

.ch-grid li {
	width:334px;
	height: 220px;
	display: inline-block;
	
}


.ch-grid1 {

	padding: 0;
	list-style: none;
	display: block;
	text-align: center;
	width: 100%;
}

.ch-grid1:after,
.ch-item:before {
	content: '';
    display: table;
}

.ch-grid1:after {
	clear: both;
}

.ch-grid1 li {
	width:447px;
	height: 220px;
	display: inline-block;
	
}