(interactive) (emacs-step-font-size -1))
-(global-set-key (kbd "C-=") 'increase-emacs-font-size)
-(global-set-key (kbd "C--") 'decrease-emacs-font-size)
+;(global-set-key (kbd "C-=") 'increase-emacs-font-size)
+;(global-set-key (kbd "C--") 'decrease-emacs-font-size)
+(global-set-key (kbd "C-=") 'text-scale-increase)
+(global-set-key (kbd "C--") 'text-scale-decrease)