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Bootstrap Responsive Cards

I am trying to learn flexbox. I want to design responsive card with Bootstrap. Of the 4 cards shown in the picture, 2 should appear on the bottom and the other two on the top, but on phones they should all be on the bottom. I tried something but didn't work. What should i do?

enter image description here

Thanks.

.card{
    display: flex;
    flex-wrap: wrap;
}



@media (max-width: 500px) {
   .card{
    flex-direction: row;
  }
}
<!DOCTYPE html>
<html>
<head>
  <title>A</title>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css" integrity="sha384-B0vP5xmATw1+K9KRQjQERJvTumQW0nPEzvF6L/Z6nronJ3oUOFUFpCjEUQouq2+l" crossorigin="anonymous">
  <link rel="stylesheet" type="text/css" href="style.css">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>



<div class="container" style="margin-top: 50px;">
    <div class="card-deck">
        <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">1 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
        <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">2 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
        <div class="w-100 d-none d-sm-block d-md-none"><!-- wrap every 2 on sm--></div>


        <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">3 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>

        <div class="w-100 d-none d-md-block d-lg-none"><!-- wrap every 3 on md--></div>
        <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">4 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
        

    </div>
</div>








<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-Piv4xVNRyMGpqkS2by6br4gNJ7DXjqk09RmUpJ8jgGtD7zP9yug3goQfGII0yAns" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.min.js" integrity="sha384-+YQ4JLhjyBLPDQt//I+STsc9iw4uQqACwlvpslubQzn4u2UU2UFM80nGisd026JF" crossorigin="anonymous"></script>
</body>
</html>

Solution

  • you should use Grid System to split screen as you want

    and your code after implement this approach : 2 image in each row

    <div class="container">
  <div class="row">
    <div class="col">
           <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">1 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
    </div>
    <div class="col">
            <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">2 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
        <div class="w-100 d-none d-sm-block d-md-none"><!-- wrap every 2 on sm--></div>

    </div>
    <div class="w-100"></div>
    <div class="col">
            <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">3 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
    </div>
    <div class="col">
     <div class="w-100 d-none d-md-block d-lg-none"><!-- wrap every 3 on md--></div>
        <div class="card mb-4">
            <img class="card-img-top img-fluid" src="https://via.placeholder.com/500x280" alt="Card image cap">
            <div class="card-body">
                <h4 class="card-title">4 Card title</h4>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
    </div>
  </div>
</div>