<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Hello</title>
  </head>
  <body>
    <h1>Hello World!</h1>
  </body>
</html>

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Hello</title>

    <link href="css/style.css" rel="stylesheet">
  </head>
  <body>
    <h1>Hello World!</h1>
    <script src="js/app.js"></script>
  </body>
</html>

Load custom bootstrap CSS and JS
Load custom bootstrap CSS and JS
