Confused

[adore]

I'm using a Livejournal layout, S2 Smooth Sailing, and made a custom layer to use it here. Something weird is happening where the container for my entry is wider than it should be. Clicking on an entry displays it narrower, the width it's supposed to be. I don't know much about coding but I can add or tweak a bit of code if I know what I should change. I hope there's a fix for this!