div.form-group:nth-child(1) label.col-sm-3 {
    width: 25%;
}
div.form-group:nth-child(1) div.col-sm-3 {
    width: 75%;
}
div.form-group:nth-child(1) label.col-sm-3:nth-child(1) ,
div.form-group:nth-child(1) div.col-sm-3:nth-child(1) {
    margin-bottom: 1rem;
}
div.form-group:last-child {
    text-align: center;
}