My point wasn't to replace the classic class grid, just to give basic HTML5 grid if necessary. You can always add any other CSS Framework for grid formatting. About <section> and other HTML5 tags.. you can always personalise the code to your standards.
The grid is based on this:
parent element {display: flex; flex-flow: row wrap}
child element {flex:1}
Replace the parent element (container) with any HTML element, replace the child element with your preferred semantic element.
Great reply, Vlad. Your code is really small and tight, and it's easy to modify, just as you say. That's one of the benefit of writing in the style that you did: modern, using all of modern CSS's native goodness. Which means its small, static, no build, and easy to modify. Very nice work.
The grid is based on this: parent element {display: flex; flex-flow: row wrap} child element {flex:1}
Replace the parent element (container) with any HTML element, replace the child element with your preferred semantic element.