CODE EXAMPLE FOR CSS

center div

<div class="row ml-5 mr-5">
        
                <div class="col-4  d-flex justify-content-start">
                    <div class="card ml-4" style="width: 18rem;">
                                <img src="..." class="card-img-top" alt="...">
                                    <div class="card-body">
                                        <h5 class="card-title">Card title</h5>
                                        <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
                                        <a href="#" class="btn btn-primary">Go somewhere</a>
                                    </div>
                    </div>
                </div>

                <div class="col-4  d-flex justify-content-center ">
                    <div class="card" style="width: 18rem;">
                                <img src="..." class="card-img-top" alt="...">
                                    <div class="card-body">
                                        <h5 class="card-title">Card title</h5>
                                        <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
                                        <a href="#" class="btn btn-primary">Go somewhere</a>
                                    </div>
                    </div>
                </div>
            

            <div class="col-4  d-flex justify-content-end">
                    <div class="card" style="width: 18rem;">
                                <img src="..." class="card-img-top" alt="...">
                                    <div class="card-body">
                                        <h5 class="card-title">Card title</h5>
                                        <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
                                        <a href="#" class="btn btn-primary">Go somewhere</a>
                                    </div>
                    </div>
                </div>
    </div>