Anyone else have babies who won't nap?

She's almost three months old now, and while she goes for 9-11 hours at night (with 1 - 2 wake ups) she really resists naps during the day. Tips? Should I be limiting night time sleep? The extra hours have been added in because it's been easier to get her down at night... so on a short night we try to get her down at 8 and she doesn't want to... but then lately she has been.

Naps are only in arms, and when she really resists she gets cranky, so am looking for ideas. Maybe just a stage?