.digit-group input {
    width: 30px;
    height: 50px;
    background-color: white;
    border: 1px solid #ddd;
    line-height: 50px;
    text-align: center;
    font-size: 24px;
    font-family: 'Raleway', sans-serif;
    font-weight: 200;
    color: grey;
    margin: 0 2px;
}

.digit-group .splitter {
    padding: 0 5px;
    color: white;
    font-size: 24px;
}