css animated background

/* Answer to: "css animated background" */

/*
  Here are some awesome websites you can use that has many Animated
  Backgrounds that you can use!
  https://bashooka.com/coding/web-background-animation-effects/
  https://freefrontend.com/css-animated-backgrounds/
  https://csshint.com/css-animated-backgrounds/

  You don't want to copy someone's elses animated background?
  Feel free to learn how to make your own! W3Schools has a tutorial
  CSS animation and it's very easy to learn how to make one
  using their step-by-step guide!

  https://www.w3schools.com/css/css3_animations.asp
*/