.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: 220px;height: 220px;display: inline-block;margin: 20px;}