Show Output
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Example of Bootstrap 3 Block Help Text</title> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <style type="text/css"> .bs-example{ margin: 20px; } </style> </head> <body> <div class="bs-example"> <form> <input type="text" class="form-control"> <span class="help-block">A block of help text that breaks onto a new line and may extend beyond one line.</span> </form> </div> </body> </html>