Building a CSS Grid System isn’t that hard really, thanks to flexbox. Heydon has stripped it to its smallest form:
.fukol-grid {
display: flex;
flex-wrap: wrap;
margin: -0.5em;
}
.fukol-grid > * {
flex: 1 0 10em;
margin: 0.5em;
}
Fukol™ is a lightweight, breakpoint free, completely responsive, element query driven*, progressive enhancement based CSS grid framework. It is 93 bytes minified, fitting comfortably inside a tweet.
Embeded below is a demo pen: