CSS fluid columns, fixed margins; the holy grail of holy grails

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Update & Summary

I feel obligated to make this question clearer, now that there is a bounty attached.

(Also, I\'m pretty sure this will be child\'s

Answer 1

I use the grid of OOCSS for this

https://github.com/stubbornella/oocss

I recently put a demo online on my own site since there are no proper examples online :(

http://www.leipeshit.com/awesome_stuff/oocss/core/grid/grids_all.html