[Forum] What does this code do?

[setishock]

Clear: {vb: stylevar right} and left. I'm trying to get an image parked on the right end of the category bar and it's winding up between the last post and the collapse button.
I commented out the collapse conditional code in level 1 no-post but still no joy. Which reminds me to ask. Is there a control in the ACP to turn off the forum collapse?