The canvas examples show what a little code can draw and animate in the browser. Each is a post with a text and a running demonstration.
Why the example runs in a frame
An example brings its own code, and that runs in a sealed frame rather than in the page itself. It therefore cannot reach anything that would otherwise be available on mahevi.solutions.
That is also why an example takes a moment longer to load than a picture: the frame is built first, and the example is handed into it afterwards.