what a Difference between col-md-4 and col-md-6

Question

what a Difference between col-md-4 and col-md-6 ?

I do not understand this. what is col-md-* ?

Please guide.

Answer 1

In col-md-* :

• col for column
• md for medium devices (medium devices : desktops, 992px and up)

4 or 6 values refers to the number of grid columns used.

Since there are total of 12 grid-columns in row.

• col-md-4 results in 3 Columns of equal size (12/4 =3).
• col-md-6 results in 2 Columns of equal size (12/6 =2).