Customized Media Player Menu icon up and down animation issue

Hello, Guy, 's I hope you're doing all great. I created the customized menu, But I don't understand how to add up and down animation please help. I attached below the sample link I need the same as it is menu functions.

My work: https://360.articulate.com/review/content/3659d0ab-49b0-4419-bdab-fb7b43c0c8c0/review

 

Sample link: https://360.articulate.com/review/content/7232e8f0-3a83-4e41-9f78-19666abc653e/review