Insure landing page with HTML & CSS only

This project took a bit longer and it's certainly far from being pixel perfect, but I definitely learned quite a bit through the process. The part that is still bothering me a bit is the top section of the website (after the nav bar - the "Humanizing your insurance" part). The proportions and spacing are a bit off, but I wanted it to scale well. Recommendations on how to code that section more efficiently (and to better match the design) would be appreciated.

Thanks for taking a look!