(No audio was recorded.) This is a tutorial shows how to use HTML5 canvas to make rising bubbles. PHP code requires a server, ignore the PHP changes if you want to do this locally as an .HTML file. Just follow along and save the text into an HTML file. Open the HTML file in your browser.

-background is a gradient
-bubbles are transparent
-bigger bubbles rise faster
-bubbles wobble as they rise
-once a bubble hits the top it's respawned at the bottom

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