Hidden Gem! Does exactly what it should, how it should. I've tried other css viewers (was searching by # installs/uses) and took a chance glad i did. Pairs quite well with the "CSS Debug Outline" extension.

I think this extension is so awesome but unfortunately it needs some features to be at it's maximum productivity, like highlighting the the element or the div I select, a button to lock what the user have selected, a button to as an higher which goes to the parent of the element the user selected, and a button to act as an lower which goes down the the child of the element of which the user selected if available.