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Have you ever thought I'd love to build something artistic but I just don't know where to start? I know I have.
One of the nice things about CodePen is that all the public Pens are open source. That means you're free to use the code you find here for whatever you wish. One way to do that is to fork an existing Pen and just start messing around with it. Change colors. Change values. Change sizes. Change animation speeds. Do whatever you want.
That's exactly what Bailh does! And it's art! Most of these Pens are forks and combinations of multiple Pens.