Welcome! Four neon circles, stacked one on top of each other, all created with a few lines of code. And the best part? You can edit the code to change how it looks.  See what colour combinations you can come up with.  

For ideas to try look for the  ▶ icon or the highlighted '//try' sections.  For example you can change:

• The colour of the circles
• The size of the circles
• The placement of a circle

or anything else that you choose!

Simply make the change to the code and press Run. 

Want to go back to the original code? Easy, just press Reset.

Create this design from scratch!