<span class="border border-primary"></span> <span class="border border-secondary"></span> <span class="border border-success"></span> <span class="border border-danger"></span> <span class="border border-warning"></span> <span class="border border-info"></span> <span class="border border-light"></span> <span class="border border-dark"></span> <span class="border border-white"></span>

bootstrap border color

<div class="bg-dark rounded-circle"> </div>

bootstrap circle

<span class="border"></span> <span class="border-top"></span> <span class="border-right"></span> <span class="border-bottom"></span> <span class="border-left"></span>

border bottom class in bootstrap 4

<!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/4.5.2/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>Circle</h2> <p>The .rounded-circle class shapes the image to a circle:</p> <img src="cinqueterre.jpg" class="rounded-circle" alt="Cinque Terre" width="304" height="236"> </div> </body> </html>

bootstrap circle image