Intro section with dropdown navigation - HTML, CSS and JS

It was a nice yet challenging project. At some point, I got lost on properly naming and organizing my navigation bar style. Overall, I'm happy with the end result but I believe I could have done better by adding animation on the side navigation drawer and the dropdown options as well but was too lazy to add it 😅 plus my initial setup with display:block was a major bumper. Anyways, let me know if there is anything that is not working as it should or if you have any feedback. PS. I have tweaked a couple of things on the dropdown menu from the original design (the dropdown is shown on hover)