.ch-grid {
	
	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: 265px;
	height: 263px;
	display: inline-block;
	margin: 3%;
	padding:2px;
}
.ch-grid1 li {
	width: 232px;
	height: 220px;
	display: inline-block;
	padding-top:3.5%;
	padding-left: 18px;
	padding-right:9px;
	/*margin-bottom:50px;*/
}

.ch-grid1{
	margin:40px;
}

.ch-grid2 li {
	width: 220px;
	height: 220px;
	display: inline-block;
	/*padding:18px;
	padding-left: 25px;*/
	margin-top:50px;
	margin-left:42px;
}

.ch-grid2{
	margin-left:-33px;}