Styles position and specificity

[bleuebuzz]

I think there is two problemes with one file components' styles:

1. styles are added after exisiting ones in the head. I think styles should be placed on top of the head. They'll acte more as "default styles" for component.
2. attribute selectors don't replace selectors but are added to them causing more specificity.

The second point could be more tricky to solve as you can't simply replace all selectors by a corresponding attribute selector (contextual selectors for eg). Here two ideas (failing solution):

• Maybe a solution could be to only replace class selectors (and adding rvcuid to those).
• Maybe allowing to manually specify temporary rvcuid which will be replaced in both element and selectors with a "strongest" one.