Integrate suggestion from review to improve consistency with existing code.
1 <svg xmlns="http://www.w3.org/2000/svg" version="1.1"
2 width="100" height="100">
3 <rect width="100%" height="100%" fill="red"/>
4 <rect x="-600" width="100%" height="100%" fill="lime">
5 <animate attributeName="x" by="600" dur="0.1" fill="freeze"/>