Answers for "css justify-content space-between large gap above and below"

flex justify-content

Diffrient types of justify-content properties in CSS:
1)normal : "Normal-alignment."
2)space-between :  "Distribute items evenly The first item is flush with the
"start,the last is flush with the end."
3)space-around : "Distribute items evenly Items have a half-size space.
4)space-evenly : "Distribute items evenly Items have equal space around them.
5)stretch : "Distribute items evenly Stretch 'auto'-sized items to fit.
6)center : "Pack items around the center
7)flex-start : "Pack flex items from the start 
8)flex-end :   "Pack flex items from the end
9)more... ('upvote please!')

justify-content vs align-items

(Note: The X and Y axis / alignment direction can change depending 
if you are using flex-direction: row or column)

1. justify-content: Horizontal-X-axis
Alignment & Spacing along primary axis (X-axis)

flex-start; Align children horizontally left

flex-end; Align children horizontally right

center; Align children horizontally centered (amaze!)

space-between; Distribute children horizontally evenly across
entire width

space-around; Distribute children horizontally evenly across 
entire width (but with space on the edges

2. align-items: Vertical-Y-axis
Alignment only along secondary axis (Y-axis)

flex-start; Align children vertically top

flex-end; Align children vertically bottom

center; Align children vertically centered (amaze!)

baseline; Aligned children vertically so their baselines align 
(doesn't really work)

stretch; Force children to be height of container (great for columns)
See it in action:

http://codepen.io/enxaneta/full/adLPwv/