HTML copied into 2 separate blocks (side-by-side) during edit is showing up as one continuous block when published

Hello,

Thanks for your help in advance. I am attempting to add the HTML of my email newsletters to a page on my site. While in editing mode, the two separate code blocks sit side-by-side just the way I want it (see attached photo). However, when I save the changes and open the published page in a new window, the newsletters are not side-by-side anymore, but one-under-the-other on one side of the page (click on the site URL link to view). How can I fix this?

I create the newsletters in MailChimp and then email them to subscribers, but what I really wanted to have on my website was an archive of the newsletters (with the links still clickable but without the email stuff at the bottom). I am not a coder so this seemed like the best option. Any other suggestions would be greatly appreciated!

Again, thanks for your time.

Best,

Kia

Can you share link to this page + which code did you use?