Ive had plans to implement something like this for some time. Other things have priority, but I think its workable. However it would involve a new nodetype (something like a code node) and some other features so it will probably be some time before I do.
Ideally id like it that when directly viewing a node of this new type it overrides all other CSS involved. Again, ive not had the tuits to do a feasability analysis yet.
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