Create a flexbox container on a specific screen size with Bootstrap 4

Create a flexbox container on a specific screen size, using the .d-*-flex class in Bootstrap.

For different screen size, use it as “d-sm-flex”, “d-md-flex”, etc as shown below −

<span class="d-sm-flex bg-warning">
  Small Screen
</span>
<span class="d-md-flex bg-info">
  Medium Screen
</span>
<span class="d-lg-flex bg-success">
  Large Screen
</span>
<span class="d-xl-flex bg-danger">
  Extra Large Screen
</span>

Above, the flex-items are set for small, medium, large, and extra large screen size.

Let us see an example of the class and its implementation −

Example

Live Demo

<!DOCTYPE html>
<html lang="en">
  <head>
    <title>Bootstrap Example</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
  </head>

<body>
  <div class="container mt-3">
    <h2>Flex Example</h2>
    <div class="d-flex bg-primary">d-flex</div>
      <span class="d-sm-flex bg-warning">d-sm-flex</span>
      <span class="d-md-flex bg-info">d-md-flex</span>
      <span class="d-lg-flex bg-success">d-lg-flex</span>
      <span class="d-xl-flex bg-danger">d-xl-flex</span>
    </div>
</body>
</html>