mobile version: reduce email input size, so that it gets smaller than standard mobile screen in portrait mode
mobile version: reduce email input size, so that it gets smaller than standard mobile screen in portrait mode

git-svn-id: 8d405b1344033e1857dac73ed6b9835985cf17aa@3363 5b3c568a-86f9-4a59-a47a-7be284f604b4

c2corg/camptocamp.org,c2corg/camptocamp.org,c2corg/camptocamp.org,c2corg/camptocamp.org,c2corg/camptocamp.org