.ch-grid {
	margin:20px auto;
	/*margin: 20px 0 0 0;*/
	padding: 0;
	list-style: none;
	display: block;
	text-align: center;
	width: 82%;
}

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

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

.ch-grid li {
	width: 220px;
	height: 220px;
	display: inline-block;
/*	margin: 20px;*/
}