This fractal image starts with a triangle. A triangle of 1/2 size is removed from the centre. This process is then continuously repeated with each of the smaller triangles formed around the edge.
You can follow this construction process using the controls above. Theoretically the process is infinite, but in this case limitations in computing power mean that the number of stages is limited to 9.
You can zoom in on the resulting fractal by using the zoom function of the SVG viewer. Zooming: Hold the control key and click to zoom in at the mouse pointer location. Hold the control key and click-and-drag to select a region to zoom into. Hold the control and shift keys and click to zoom out. You can also use the zoom commands in the context menu. You can access this menu by right-clicking the mouse on the SVG image.