You may use predefined grid classes. Using .col-md-* you can set the grid system.
You can use the align-items-* class
to set the vertical alignment.
You can use the justify-content-* class
to set the horizontal alignment.
To nest your content with the default grid, add a new.row and set
of .col-sm-* columns within an existing .col-sm-* column.
Using .order class, you can set the order position.
You can offset the grid column using .offset-* grid class.