.boardtbls {
            box-sizing: border-box;
        }
        
        .columns {
            float: left;
            width: 33.3%;
            padding: 8px;
        }
        
        .price {
            list-style-type: none;
            border: 1px solid #eee;
            margin: 0;
            padding: 0;
            -webkit-transition: 0.3s;
            transition: 0.3s;
        }
        
        .price:hover {
            box-shadow: 0 8px 12px 0 rgba(0, 0, 0, 0.2)
        }
        
        .price .header {
            font-size: 25px;
        }
        
        .price li {
            border-bottom: 1px solid #eee;
            padding: 20px;
            text-align: center;
        }
        
        .price .grey {
            background-color: #eee;
            font-size: 20px;
        }
        
        @media only screen and (max-width: 600px) {
            .columns {
                width: 100%;
            }
        }