* {
			margin: 0;
			padding: 0;
			box-sizing: border-box;
		}

		ul {
			overflow: hidden;
			padding: 10px;
		}

		li {
			list-style: none;
			width: 33.33333333%;
			padding:10px;
			float: left;
		}
		li div{
			background: #ddd;
			height: 100px;
		}