Flex-box: Align last row to grid

Question

I have a simple flex-box layout with a container like:

.grid {
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
}

Answer 1

If the individual child items have an explicit width (eg. 32%), you can solve this by adding an :after element to the parent and giving this the same explicit width.