<!doctype html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="theme.css"> </head> <body> <div class="container main"> <h1>Snow10 ☃</h1> <form class="encode"> <label for="hideText">Non-secret message: <input type="text" name="hideText"></label> <br> <h1>Secret message</h1> <textarea name="input" required></textarea> <h1>Output</h1> <textarea name="output" readonly></textarea> <input type="button" value="Hide - Unhide"> </form> </div> </body> </html>