Is there any way to achieve this in CSS3?:
height: 100% -110px;
My context:

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What you want to use is
calc()that is comming to FF and propably webkit, but don’t count on it being widely supported anytime soon.As for your example, maybe sticky footer will be some inspiration for you.
Edit
Nowadays it’s well supported by major browsers:
http://caniuse.com/calc