Design changes aren't saving HELP

Hello,

Whenever I edit the CSS of the website it’ll look just fine for a while, respecting the assigned colors, paddings, fonts, margins, etc. I’m not ready to publish the website yet so I haven’t published any versions yet. And after a couple of days the structure and texts will remain as I left them but the CSS will go back to how it originally was, changing backgrounds, colors, fonts, paddings, etc.

I took a screen recoding video of what it looked like two days ago:
https://drive.google.com/drive/folders/1NcILWUVOyfD3F5iXri-wzLMTeOLaw2ni?usp=sharing

Today, again, it looks all broken. Nothing like the video. WHY IS THIS HAPPENING??? PLEASE HELP!!! I’m tired of adjusting the design over and over and over again…

The pages affected are: Home, Mortgage Services, Real Estate Services, and FAQ.

Read Only link: https://preview.webflow.com/preview/sean-mccoy-a1e6cc?utm_medium=preview_link&utm_source=designer&utm_content=sean-mccoy-a1e6cc&preview=e065c56d283f4fe0b0962d1c7eedf39f&pageId=60ee09c8c881f868d8abea61&workflow=preview

It’s as if the HTML changes are saving but the CSS ones are not.