Odd Text Issue

I recently started my own blog, Think Minimalism, and I seem to be running into a very odd issue. Whenever I install a theme, everything looks great. It seems like everything is working just fine… until I look at the bottom of my post. No matter which skin I use, the very last paragraph of my post is different than everything else. In one theme, it’s substantially smaller. In another, the font is simply altered. In another, it isn’t doubled spaced as is the rest of the text.

I’ve looked through the code and have done my best to try and pinpoint the problem, but I can’t seem to come to any conclusions. I’ve even gone as far as to delete and re-install the themes to ensure that I hadn’t messed something up on the coding side of things.

What I have noticed is that the issue does not appear on the default TwentyEleven theme.

If someone could help me, I’d greatly appreciate it. If you’d like to see what I’m referring to, view the most recent post on my blog @ thinkminimalism.com