collapse stack to show side by side

Hi,
I’m testing out your plugin, and on your example page I see the timeline stacking tightly, so the next entry appears on the other side of the line and only a little bit lower down than the start of the first one, as on this page on desktop: https://www.wp-timelineexpress.com/examples/basic-timeline/
On the site I’m building, each announcement is forcing the next to break to a new row. This results in a lot of space between entries on each side of the line. I would like my timeline to not force the next entry below the previous one like in your example. I’ve taken a look at my CSS and I have no styles affecting it other than setting font-size, font-family and line-height. I’ve looked through settings and documentation for an explanation, but haven’t yet found one. Please note, I am using Gutenberg and the latest WP (5.2.4).
I can’t share a link because the dev site is password protected now, but could provide access to a developer if an example is needed. I have full FTP/SSH/admin access, if that helps.
Thanks!