SVG animation

http://tutorials.jenkov.com/svg/svg-animation.html
http://webdesign.tutsplus.com/tutorials/how-to-use-animatetransform-for-inline-svg-animation--cms-22296

 <animateTransform attributeName="transform" type="translate" from="0 0" to="0 -50" begin="0s" dur="5s" repeatCount="indefinite" />
                        <animate attributeName="opacity" values="1;0" dur="5s" repeatCount="indefinite"/>