.ch-grid {
	margin: 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 {
	padding:20px;
	margin:0;
	
	width: 340px;
	height: 340px;
	max-width: 100%;
	display: inline-block;
}