I have a few small render issues I've found. I am on Google Chrome.

First, just to experiment, I shrunk my browser down to a rather small size. Up the top, I got overlap from the page number indicators over the tabs.
[img]http://s25.postimg.org/6hmsgeb7j/RPG_Render_1.png[/img]
I also agree that hiding avatars would be useful for such small-sized displays, and the user info reduced to a single line (at least optionally)

Second, I managed to find the full-screen button while editing a post. When exiting fullscreen, however, I discovered that the body of that post had realigned to the center, shoving the avatar section aside. I reproduced it just to make sure it was not the resizing- it wasn't, just the fullscreen.
[img]http://s25.postimg.org/xti1hqfy7/RPG_Render_2.png[/img]