.tbfont {
    outline: none;
    display: inline-block;
    vertical-align: middle;
    width: 45px;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    color: #19122e;
    margin: 0 5px;
    padding: 0;
    text-align: right;
    box-sizing: border-box;
    border-color: #d0d3d6;
    border-style: solid;
    color: #474545;
    background: #fff;
    vertical-align: middle;
    -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
    box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
}