Untitled

<!DOCTYPE html>

<html>
  <head><link rel="stylesheet" href="Untitled-1.css"></head>

  <h1>Hello World</h1>

  <body>
      My name is Erol.


    <button onclick = 'myFunction()' > Press me! </button>


  </body>


  <script src="My Prime Testing Ground.js"></script>


</html>