CSS Only Notification Bell Animation

In today's frontend challenge, we're going to code a CSS notification animation. So when the user has new notifications, using a CSS class on the parent element, we'll give our bell icon a ringing animation, and give the circle element above it a pulsating animation.

My website
https://www.pixelrocket.store

Download project files (you need this if you want to code along):
https://www.dropbox.com/s/2urpeiyh4xl7kmt/Day%20Nine%20-%20Notification%20Icon.zip?dl=0

30 Days Of Frontend Playlist
https://www.youtube.com/playlist?list=PLCvPStjGyw0eIMVhkIyy7Xyu90vNZwjPr