.sp-form-select {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-image: none;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    box-sizing: border-box;
}

    .sp-form-select:focus {
        color: #495057;
        background-color: #fff;
        border-color: #80bdff;
        outline: 0;
        box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    }

.sp-form-select-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    border-radius: 0.2rem;
}

.sp-form-select-lg {
    padding: 0.5rem 1rem;
    font-size: 1.25rem;
    border-radius: 0.3rem;
}