<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Bootstrap Block Help Text</title> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="m-4"> <label class="form-label" for="inputPassword">Password</label> <input type="password" class="form-control" id="inputPassword"> <div class="form-text"> must not include spaces and be between 8 and 20 characters long, including letters, numbers, and special characters. </div> </div> </body> </html>