<html lang="en-US"><head><meta charset="UTF-8"><link rel="stylesheet" href="style.css" /><title></title></head><body><h2>Hello world </h2><button>Click to hi</button><script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script><script type="text/javascript" src="script.js"></script></body></html>