CSS Learning (22nd)-flexbox model 3

CSS Learning (22nd)-flexbox model 3
I. theory:
1. flex-line-pack stack scaling row
A. Use the same as flex-pack
B. Add stretch start/end/center/justify (average distribution)/distribute (Half Space on both ends)/stretch (stretch to fill the entire container)
C. flex-line for individuals, and flex-line-pack for groups

Ii. Practice:

1.

    
     Title                box1        box2        box3        box4        box5        box6        box7        box8        start                box1        box2        box3        box4        box5        box6        box7        box8        start