.buy {
      position: relative;
      float: left;
      left: 0px;
      width: 257px;
      text-align: center;
      z-index: 2;
     }
     
.cart {
       position: relative;
       float: left;
       left: 0px;
       width: 258px;
       text-align: center;
       z-index: 2;
      }