Landing page with animation, sounds, and some other effects ✨

This is my first big project, and I put a lot of time in on it. I only used HTML, CSS (with the preprocessor SASS) and Vanilla JS. Well, here is a brief outline of the site's functionality. You can read about it in more detail here.

• Testimonials' slider that is automatically moving. You can hover a mouse pointer on it to stop it. Also, you can choose which testimonial to read by clicking one of the dots below the slider;
• The input field in the footer will shake and change its border on the invalid input;
• Button sounds and animation;
• Different mobile and desktop designs.

So, that's it. As always, any feedback is very welcome! 🙂