<!doctype html> <html> <head> <meta charset="utf-8"> <title>JavaScript Virtual Keypad Demo</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" type="text/css" href="keypad.css"> </head> <body> <input type="text" id="userinput"><br> <div class="keypad"></div> <script src="app.js"></script> </body> </html>