Grid via
float
(Bootstrap 1–2)
1
2
3
4
5
6
7
8
9
10
11
12
span 3
span 4
Grid via
float
(Bootstrap 3)
1
2
3
4
5
6
7
8
9
10
11
12
span 3
span 4
Grid via
flex
(Bootstrap 4–5)
1
2
3
4
5
6
7
8
9
10
11
12
span 3
span 4
Grid via
grid
(Bootstrap 6?)
1
2
3
4
5
6
7
8
9
10
11
12
span 3
span 4