CSS3 animations will only work in modern browsers! Animations and transitions do NOT work in Internet Explorer 9 or older!
Not all animations may be useful for animating characters. For example animating the border-color will not have any effect on the text or
will just look weird...
Also some animations were designed for showing, while others were designed for hiding. Usually the name of the animation indicates this.
For example 'puff-in' is for showing and 'puff-out' is for hiding. But of course you can designed your own animations with the Animation