Before adding it to your website you will need to style it the way you want it to look.
Here is how:
1. Load up http://goo.gl/UIEtZp
2. Make Changes

3. Copy the code from line 1 to 36
4. Go to your website dashboard click on custom code

5. Go To Head Code
6. Add <style> & </style> tags

7. Paste the code you copied from Codepen between the style tags

8. Click save changes then publish your site
Note: Custom code only shows up on the published site not in the designer