HTML using CSS Grid, Flex and SASS

Hey, just use less intensive box-shadows ...

Great work overall, like @hardy mentioned just try to use less intensive shadows by increasing alpha value in shadow color and increasing the blur. Additionally I have a couple of suggestions:

• The "Why Us" section is a list of reasons to choose this fictional service. So it makes sense to use a more semantic element, ul. It looks ugly by default but you can always style it according to the design.
• In your CSS, I see you're using a mix of a responsive unit (rem) and absolute unit (px) which is something you'd want to avoid because absolute units do not scale with the browser's font size setting, you can learn more about responsive units in this article.

Good luck, and keep up the good work!