post in page floating problem

I’ve used this plugin for several websites I’ve created with WordPress.
But the plugin seems to have some problems ‘floating’ on the website I’m currently designing. The title and image are detached from eachother. I’ve tried to create a new post next to it. At first it seemed that the problem was solved with this, but then the new post had took over the floating problem.

My question is, where doest this problem come from, and, ofcourse, how do I fix this?