.dz-button {
    position: relative;
    z-index: 2;
    display: table-cell;
    width: 450px;
    height: 80px;
    border: 1px solid #333;
    border-radius: 4px;
    background: #333;
    text-decoration: none;
    color: #fff;
    font-size: 26px;
    line-height: 1;
    font-weight: bold;
    vertical-align: middle;
}