Custom Events Dispatched from Web Components 

When you build web components, you are generally building a new feature that is intended to be used by other developers and on multiple websites. This means planning the features and building them in a way that won't cause issues on other other websites.
This tutorial explains how to use CustomEvents, CSS Properties, and private properties inside the component class.
Code from the video: github.com/pro...
Custom Web Component Playlist: • Web Components