.h{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:start;-ms-flex-pack:start;justify-content:flex-start}.h3{margin:0}.b{margin:6px;margin-left:50px}.data-table td{border:1px solid #ddd;padding:6px;text-align:center;line-height:.8}.back-button{position:fixed;bottom:20px;right:20px;padding:10px 20px;font-size:16px;background-color:#007bff;color:#fff;border:none;cursor:pointer;border-radius:5px}.back-button:hover{background-color:#0056b3}.data-table{width:90%;margin:20px auto;border-collapse:collapse;-webkit-box-shadow:0 2px 8px rgba(0,0,0,.1);box-shadow:0 2px 8px rgba(0,0,0,.1)}.data-table td,.data-table th{border:1px solid #ddd;padding:12px;text-align:center}.data-table th{background-color:#f8f8f8;font-weight:700;color:#333}.data-table tbody tr:nth-child(2n){background-color:#f9f9f9}.data-table tbody tr:hover{background-color:#f1f1f1}.data-table tbody tr{-webkit-transition:background-color .3s;transition:background-color .3s}