This is a pretty interesting idea!<p>- The current selection needs to be much more obvious. The box-shadow isn't enough.
- It would be cool to realtime see the HTML that's being generated. The HTML should be indented.
- "Edit" should take arguments rather than switching focus to the element.
- After creating an element, it should be selected (not it's parent)
- Easily link to 3rd party css, eg. bootstrap