How to vertically center text inside a flex item?

Question

css

For the first time, I decided to try to make a site (with a PSD layout) on a flexbox, the blocks stood up perfectly, the only problem is to center the text inside each block vertically. Vertical-align doesn't work.

Answer 1

align-items: center

Answer 2

Suddenly it will help)
https://wp-kama.ru/id_8045/flex-v-css.html