Social Links Prodile page using React and flex layout

Hi. It's looking great as a fit to design. But you use px in the CSS and it makes it less responsive. For example, if you shrink it to mobile width the second button's text expands on 2 lines, and cuz of that its height becomes greater than other buttons. I guess this problem would be resolved if to use rems. And it's really simple if you set in HTML element font-size to 62.5% so that all rems will be multiplies of 10. Also, as you've chose to use react framework, then it could be composed of components like a Card and Button. Hope it's somehow helpful. :-)