Run ❯
<!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 href="../../cdn.jsdelivr.net/npm/bootstrap%405.1.3/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="../../cdn.jsdelivr.net/npm/bootstrap%405.1.3/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container mt-3"> <h2>Form Control Size</h2> <p>You can change the size of .form-control inputs with .form-control-lg or .form-control-sm:</p> <form> <input type="text" class="form-control form-control-lg" placeholder="Large input"> <input type="text" class="form-control mt-3" placeholder="Normal input"> <input type="text" class="form-control form-control-sm mt-3" placeholder="Small input"> </form> </div> </body> </html>