Love it! If you're studying HTML5, the next thing to try is to execute the Mandelbrot iterations on the GPU with WebGL - GPUs are very well suited for fractal

Love it! If you're studying HTML5, the next thing to try is to execute the Mandelbrot iterations on the GPU with WebGL - GPUs are very well suited for fractal rendering; with a beefy GPU you should find you can render at 60fps https://www.shadertoy.com/view/4df3Rn https://www.shadertoy.com/view/4df3Rn (if it's a little slow, on line 5 set 'AA' to 1)