FLEXBOX LESS MIXINS

Just flex. No floats, inline-box or other layout hacks here.

Fill the space evenly.

Make them into columns instead of rows.

Fill the space with the first expanding one part, the second three and the third by two.

Align content to the vertical center.

Align content to the horizontal center.

Align content to both centers.

Change the item order without touching the mark-up.

Align content to the end or in this case the right.

Create even space between taking content length into consideration.