animation of tref
to animation of dx and dy attributes of the tref element.
This means, the first text is shifted a little bit right down.
In the second text each glyph is shifted a little bit right down relative
to its predecessor.
Red 'text' is animated with values animations and for the top one with
keySplines to get the same effect exactly below the blue test.
If the red text gets visible, an error is occured.
text
text
text