Including HTML and Javascript in one block to integrate an API

Hi 

I'm looking for a way to integrate Current RMS API into my site. I have seen the code block but would need to have Javascript and HTML inside on block to do this but it seems that you can only have one type of code per block.

Has anyone every integrated an API into squarespace with Javascript before?

Cheers!

You can have multiple types of code inside a code block. Just wrap them correctly. 

<script>  .... </script>
<style> ... </style>

The dropdown in code blocks is a bit misleading.

This explains what it does: