So I am using the Admin Junkies 2.0 - Dark theme. The issue is that when you are on the index and you hover over a thread, the item expands a little. When this happens the top dashed border breaks out of the topic listing container. Ive not tracked down the actual classes in the css or the markup, which I can... I just wanted to bring it to @Cedric's attention. Which suggest (maybe) that the element with the border should not be a child of whichever element it is but should be a child of that items parent so that when it expands (zooms, whatever) it does not break out of the parent since it will not have the same :hover etc applied to it.