Add CSS animations.
Add CSS animations.

nyimbi/tilemill,mbrukman/tilemill,MappingKat/tilemill,Zhao-Qi/tilemill,Zhao-Qi/tilemill,tizzybec/tilemill,paulovieira/tilemill-clima,florianf/tileoven,isaacs/tilemill,tilemill-project/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,nyimbi/tilemill,tizzybec/tilemill,isaacs/tilemill,tizzybec/tilemill,mbrukman/tilemill,fxtentacle/tilemill,paulovieira/tilemill-clima,nyimbi/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,fxtentacle/tilemill,fxtentacle/tilemill,fxtentacle/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,MappingKat/tilemill,paulovieira/tilemill-clima,tizzybec/tilemill,nyimbi/tilemill,paulovieira/tilemill-clima,Teino1978-Corp/Teino1978-Corp-tilemill,fxtentacle/tilemill,tilemill-project/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,Zhao-Qi/tilemill,mbrukman/tilemill,tizzybec/tilemill,tilemill-project/tilemill,paulovieira/tilemill-clima,florianf/tileoven,florianf/tileoven,mbrukman/tilemill,nyimbi/tilemill,mbrukman/tilemill,MappingKat/tilemill,MappingKat/tilemill,Zhao-Qi/tilemill,Zhao-Qi/tilemill,isaacs/tilemill,MappingKat/tilemill