Loop css animation in .svg?

Question

css

how to loop the animation in svg
for clarity example
http://codepen.io/
at the end of the animation stop, but you need to start playing again step by step
styles from the svg file is not possible to take out (the file is embedded with an image (url: 1.svg))

Answer 1

animation-iteration-count: infinite;

Answer 2

https://ru.wikipedia.org/wiki/SMIL