Hello happy coders!   I found this particle code on another post and updated it make it work for my purpose... see codepen. Every time you mouse-over the black area, 300 particles (divs) are added and animated. While it looks pretty smooth in Safari & Firefox - it's not smooth at all in Chrome. And I know the processor load is pretty high in all browsers.   How can I improve the code to make it run more smoothly with less processor load? Maybe using canvas might be a bett