Tip-Calculator - JS, HTML, CSS

I'm back!!

In this project, the most difficult for me was pulling in the buttons and custom input, I tried forEach but that didn't work since the custom was an input but I realized that I can use a conditional to distinguish between the button and input.

Areas of my code I feel unsure of is if I am using the callback functions correctly in JavaScript

Questions I have for best practices are if I used my accessibility is correctly used and formatted and how can I improve my JavaScript.

My JavaScript file will be worked on in the coming days to improve readability.

All Feedback is welcomed! Thanks! :)