Mobile first feature section using CSS Grid and Flexbox

Looks great!! Only possible improvement you can make is to move your images lower.

I tried to achieve this by adding a "justify-self: flex-end" to your card-icon class, but that didn't work for some reason. However adding "margin-top: auto" to card-icon did the trick. "margin-top: auto" basically gives margin-top the biggest possible, forcing the content to the bottom of it's container. And if you give "auto" to both margin top and bottom to the same content, you end up centering that content vertically. A similar effect can be achieve with margin left and right.