Hi, Greg.
The pull request that fixed this issue as of version 4.4.3 is here: https://github.com/moderntribe/the-events-calendar/pull/1296/commits
Which are the latest commits for this file overall, as seen here: https://github.com/moderntribe/the-events-calendar/commits/develop/src/resources/css/tribe-events-full.css
I see the link you provided is using Avada theme. They customize our plugin’s default layout and therefore they should be accounting for all the necessary styling tweaks.
I see the Tribe Full style’s 58% width rule is applying to your Venue map. You should report this to their support to handle.
I’m also going to close this thread to new replies, since it was originally Jens’. However you may open your own new thread if you have a question about this or something else.
Thanks!