.form-group {
    margin-bottom: 1rem;
}
.btn-default {
    color: #212529;
    background-color: #f8f9fa;
    border-color: #ced4da;
}
.btn-default:hover {
    color: #212529;
    background-color: #e2e6ea;
    border-color: #adb5bd;
}