How to align columns?

Question

css

There is a code - Fiddle
Cannot align column height with block 3
is it possible to solve this problem?

Answer 1

It's not clear what to use.
The easiest way is to convert it into a regular table.
You can do it on flexbox, but you still have to change the html - https://css-tricks.com/accessible-simple-responsiv...

Answer 2

.item .block:last-child {flex: 1;} ?
If all columns are the same height for .block

{
  justify-content: center;
  flex-direction: column;
  overflow:hidden;}