I have a codepen here - https://codepen.io/anon/pen/REdpvz
Its a simple grid using flex.
I need three columns and a margin in between each block.
This is working here but I also need the blocks to be 100% of the container so I don’t want the margin after the 3rd block.
Is it possible to have a grid like this where the blocks are a percentage and the margin on the inside and not against the container.