Flexbox Grid System
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
4
2
5
3
4
6
7
2
3
6
7
2
3
6
7
2
3
3
3
7
2
3
8
1
3
9
1
2
10
1
1
11
1
12
6
3
3
Fixed width column
7
2
3
Fixed width column
7
2
3