Hi!

I'm in a situation where I want to use the master version of css-mode,

but I want to stay at Emacs 24 for all other purposes. This can of

course be solved by copying css-mode.el into my local Emacs

installation once in a while, which is what I've been doing so far.

However, I imagine other users may in the same situation as me,

especially since the master version of css-mode now provides a whole

new scss-mode as well.

I think it would be very convenient to be able to subscribe to an ELPA

version of css-mode, which could be updated more frequently than Emacs

releases. Is there a procedure for turning a built-in mode into an

ELPA package, and at the same time keeping the built-in package? It

looks like for instance ada-mode is in a similar situation.

-- Simen