Spacing
Padding and margin utility classes are named using the format: env-{property}-{specifier}--{size}
Valid values for property
m
formargin
p
forpadding
Valid values for specifier
top
right
bottom
left
around
Valid values for size
0
a
auto, only applicble tomargin
xxx-small
xx-small
x-small
small
medium
large
x-large
xx-large
xxx-large