Create an HTML file like below. In the script tag, either you can use CDN link or from your local like
<script type="text/javascript" src="dojo/dojo/dojo.js"
data-dojo-config="async:true">
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Tutorial: Hello Dojo!</title>
</head>
<body>
<h1 id="greeting">Hello</h1>
<!-- load Dojo -->
<script src="//ajax.googleapis.com/ajax/libs/dojo/1.10.4/dojo/dojo.js"
data-dojo-config="async: true"></script>
</body>
</html>
That's it. When you run this HTML, you should see Hello. Yes, we are yet to use any Dojo specific code in this example. But this shows how you can create a simple page using Dojo. Next, we will see how we can apply Dojo to this simple page.