Background color
bg-maincolor
bg-secondcolor
Font color
black
white
secondcolor
maincolor
col-12
col-11
col-10
col-9
col-8
col-7
col-6
col-5
col-4
col-3
col-2
col-1
col-12
offset-d-1
offset-d-2
offset-d-3
offset-d-4
offset-d-5
offset-d-6
offset-d-7
offset-d-8
offset-d-9
offset-d-10
offset-d-11
m-1
m-2
m-3
m-4
m-5
m-6
m-7
m-8
mb-1
mb-2
mb-3
mb-4
mb-5
mb-6
mb-7
mb-8
mt-1
mt-2
mt-3
mt-4
mt-5
mt-6
mt-7
mt-8
p-1
p-2
p-3
p-4
p-5
p-6
p-7
p-8
pt-1
pt-2
pt-3
pt-4
pt-5
pt-6
pt-7
pt-8
pb-1
pb-2
pb-3
pb-4
pb-5
pb-6
pb-7
pb-8
absolute
relative
fixed