*{margin:0;padding:0;box-sizing: border-box;}
ul{padding:17.5px;overflow:hidden}
li{list-style:none;}
ul li{ width:50%;float:left;padding:7.5px;}
ul li div{height:100px;background:#ccc;}


ol{padding:15px;overflow:hidden;}
ol li{width:50%;float:left;padding:15px;}
ol li div{height:100px;background:#ccc;}