How to add built in Squarespace animations to codeblock elements?

How do you add built in Squarespace animations to codeblock elements?

I imagine you would just need to add the animation class IDs to the elements in question, but I can't seem to find the correct IDs to add.

Looking for text and image animation - or if it's easier the entire div block would work too.

Can you share link to page where you added code block & link to page where you enable animation? We can check easier

I applied built-in animation to a code block by adding the "list-item-basic-animation" class to a div wrapping the content.

Example code block content:

<div class="list-item-basic-animation">
  <h2>This should fade in</h2>
</div>