Reusable accordion from scratch in Angular

In this video we'll create a reusable accordion from scratch in angular.
This angular accordion example discuss about content projection and angular animation. This reusable angular 8 accordion example almost similar to angular material expansion panel but with our own custom styling and animation.
Hope you like this video.
Tell us in the comment if there is a better way to improve this code.
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[@yuresilva4922]

Simply a hero

[@stefanvukasinovic9234]

How to do that but keep track of other accordition states