P’ Faii
✨ Tawan Thirawee
<html> <head> <title>Let's Start</title> <style> body{ background:#eee; margin:1em; font-family:sans-serif; } </style> </head> <body> <h1> Hello <span id="username">Guest</span> 😎 </h1> <input value="Jabont" id="input_username"> <button onclick="show()"> OK Go Go </button> <script> function show(){ var inputval = document.getElementById("input_username").value; document.getElementById("username").innerText = inputval; } </script> </body> </html>