Posting mailchimp template code onto a website

Hi,

We usually send out our newsletters from mailchimp and then post them onto our website.

This is the email that was sent out:
https://mailchi.mp/c156b494e308/c3td47lcky-702956

When I try to copy the code onto the website, the 2nd column disappears leaving just one very long column.
https://www.arama.com.au/news-item/8393/arama-e-news-bulletin-february-2022

Can anyone please help guide me on how to fix it?