Hi guys, we currently have a Table of Contents on all blog posts on our site that automagically draws its links from the h2 headings throughout the post. Installed via the help given in this thread here a few years ago: Adding contents structure(TOC) to CMS - Custom code - Forum | Webflow
My question is, how do I go about making this TOC have a collapsible feature? Meaning that when the page is initially loaded, the TOC is shrunk and you then have to open it up. For example like on this site here: BEST Guide for Choosing Between Dublin vs Belfast (2023)
Any help is greatly appreciated and thank you in advance! 
read only: Webflow - Dream Big, Travel Far
Here is my site Read-Only: LINK
(how to share your site Read-Only link)