Good job! 
Just centralize the " Here’s more info about Aaron Swartz" text to make the page looks better (in my opinion).
Now some coments about your code:
- Your
<link>and<script>tag is not on the right place, it should be on the<head>tag, and you can access the<head>tag by the “Setting” button, like in the image below:
You must do like this, because every thing that you write on the code editor is in the <body> on Codepen. You can read the The Pen Preview Document to understand better what I am saying.
-
And of course you don’t need to add
<body>tag for the reasons I said above. -
And you can use the Codepen Analyze tool to see the other things that you can improve in your code.
