Hi,

There are two tabs in DebugBar where the style is displayed:

* The "Style" tab where you have a reference to the rule used in the css
* The "Computed Style" where you don't have a reference to the rule used in the css

IE is handling css and dom differently from other browsers and the information from the source css is not retained when the page is interpreted, so that's why it's not possible to display the information the same way other developer tools on other browsers are doing it.
I plan to improve this in future version but I am focusing on launching the v6.0 right which will let the user change the source code on the fly directly from DebugBar.