<div class="row">
                <div class="col-12 col-md-6 col-lg-4">
                    <select class="form-select" aria-label="Default select example">
                        <option selected>Open this select menu</option>
                        <option value="1">One</option>
                        <option value="2">Two</option>
                        <option value="3">Three</option>
                    </select>
                </div>
                <div class="col-12 col-md-6 col-lg-4">
                    <select class="form-select" aria-label="Disabled select example" disabled>
                        <option selected>Open this select menu</option>
                        <option value="1">One</option>
                        <option value="2">Two</option>
                        <option value="3">Three</option>
                    </select>
                </div>
                <div class="col-12 col-md-6 col-lg-4">
                    <select class="form-select" multiple aria-label="Multiple select example">
                        <option selected>Open this select menu</option>
                        <option value="1">One</option>
                        <option value="2">Two</option>
                        <option value="3">Three</option>
                    </select>
                </div>
            </div>
                                

            <div class="row">
                <div class="col-12 col-md-6 col-lg-4">
                    <select class="form-select form-select-lg mb-3" aria-label="Large select example">
                        <option selected>Open this select menu</option>
                        <option value="1">One</option>
                        <option value="2">Two</option>
                        <option value="3">Three</option>
                    </select>
                </div>
                <div class="col-12 col-md-6 col-lg-4">
                    <select class="form-select form-select-sm" aria-label="Small select example">
                        <option selected>Open this select menu</option>
                        <option value="1">One</option>
                        <option value="2">Two</option>
                        <option value="3">Three</option>
                    </select>
                </div>
            </div>