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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Bootstrap 4 Block Help Text</title> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css"> <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.bundle.min.js"></script> <style> .bs-example{ margin: 20px; } </style> </head> <body> <div class="bs-example"> <form> <div class="form-group"> <label>Password</label> <input type="password" class="form-control"> <small class="form-text text-muted"> Your password must be 8-20 characters long, contain letters, numbers and special characters, but must not contain spaces. </small> </div> </form> </div> </body> </html>
