Huddle landing page with single introductory section

Hello again Mehdi, again an almost pixel perfect solution! you are a beast!

Almost nothing to say about your CSS it looks clean for me and the responsiveness is working great.

The only thing that I would probably add are some transitions for your buttons (because I'm really obsessed with transitions haha), they will give your buttons a smoother effect, resulting on a better user experience.

Try adding transition: background-color 0.5s ease, color 0.5s ease; on your .register class, and transition: border-color 0.5s ease; on your social media icons.

Hope my feedback helps you! keep going with those pixel perfect projects, you are doing great!