What would you see if you looked at your web page? Its skeleton? In this case, its CSS backbone.
If you edit or create your own style sheet, study other style sheets, or just wish you had started knowing what that was all about already, you must check this out.
XRAY
There's info about browser compatibility, but I can tell you it's seamless on today's Safari for the Mac.
See that XRAY button in the middle of the page? Drag it into your Bookmarks Bar. Yeah. Really. Then go to a page you want to XRAY. Pick any page, it really doesn't matter. Then click on that Bookmark Bar XRAY link.
A window appears. Follow the instructions. Suddenly you're in a world where code talks to you while showing you what it does.
Click the x in the upper right hand corner of the dialog box to come back to the world of the living.
