When looking at the list of posts on a forum, if the “by <user name here>” line isn’t there for some reason, then the spacing gets screwed up. Here’s an example: https://i.imgur.com/Zwpmt82.png
> 2533274796457055;2:
> Hmm. Mine doesn’t look like that?
>
> Can you try logging out/back in, clearing cache/cookies, etc?
After testing, it looks like it’s only occurring in Firefox. Chrome, Edge, and IE 11 all look fine.
EDIT: I’m not sure how the other browsers are rendering it correctly, but because the spritesheet images on the left are absolutely positioned, they don’t displace other elements in the DOM. There looks to be a lot of complicated CSS in those grids to make them work, and in the years since Waypoint has launched, Flexbox and CSS Grid have basically become supported across all modern browsers. My unsolicited suggestion would be, if you start having other problems with the grid, don’t rework it, but rewrite it using those great CSS features.