Fractal/Recursive numberline

Use Mouse Wheel or Touch/Pinch to Zoom. Click-Drag to Pan.

Minor ticks and their labels emerge small and grow to full size as you zoom in.

Configuration

Initial visual scale of newly appearing minor ticks relative to their full size.
Screen distance (pixels) between minor ticks at which they reach full visual size. Lower values make them grow faster.
Font size for major tick labels when at full visual scale.
Base font size for minor tick labels (this size is then scaled by their emergence factor).