Testing on Mac Safari.
All looks fine except,
The post actions (rep, report, quote, etc) are butted right up against the bottom border.
Add to rep opens a new tab rather than a floating box.
The first two page numbers are butting together

Some of the HTML is unnecessary and only adds to page weight, and some is invalid. You can make it a lot cleaner.
- really? That's been obsolete for years. The name attribute is invalid on the element. If you're wanting to make something link to an in-page anchor (Back to top) then link it to an element's ID.
And you have loads of

---

elements doing nothing except putting borders on the top and bottom of the , which should just be css borders on the

and

elements with classnames like "big" when you could be applying styles based on them being inside the

element.