Hi @wendybedell,
I checked your website and could notice the issue. The issue is due to the style not loading due to mixed content error.
A mixed content error occurs when your website is still trying to load assets via http instead of https.
Due to the above, it’s causing the style to not load when you make the changes. Could you please go to your WordPress dashboard under Settings > General and make sure the “WordPress Address (URL)” and “Site Address (URL)” have https instead of http in their URLs?
One of the main reasons for the issue to occur would be due to that. If the site URLs have http, please update that to https and save the changes and that should help with resolving the issue.
Screenshot at 16:55:47.png
Please do make sure you have the latest backup of the website before you make such changes so that you could revert when needed.
Please do check and let us know whether that helps. Have a nice day ahead.
Kind Regards,
Nithin