Responsive News Letter Signup Form Using HTML CSS Javascript

1: What did you find difficult while building the project? Had a lot of fun while working on this challenge. I think this challenge wasn't difficult for me. if someone who is beginner may find it difficult. 2: Do you have any questions about best practices? Yeah, Would like to know if someone answer me. I have wrote JavaScript for form validation and for other stuff. wanted to know the way I wrote a JavaScript is it okay? If not please suggest it's best practices.