SVG or Scalable Vector Graphics is popular way to draw graphic elements in HTML documents. But very often you need a copy of web graphics, usually in raster (.PNG, .JPG, etc.) format. Unfortunately browsers don't allow saving SVG draws as a file or even copy its content to the clipboard.
For transformation use: <g transform="scale(0.5 0.5) rotate(30 128 128)">. Scaling by ...viewbox="0 0 256 256"... parameter may not working.
Note: Saving by buttons don't work in Internet Explorer! Save the picture using: Right click -> Popup menu -> Save picture as...