quiz-list {
   width: 400px;
   display: block;
   padding: 2px 20px;
   margin: 0px 5px;
   float: left;
}

   quiz-list.latest {
      background-color: #f0f0f0;
   }

   quiz-list.byTitle {
      background-color: #e0e0e0;
   }

   quiz-list.random {
      background-color: #d0d0d0;
   }
