https://www.w3.org/TR/css3-positioning/#logical-box-offsets-beaso
Warning: this property depends on both writing-mode and direction support to behave as intended.
This is a paragraph. It should be offset two (2) em from the left of its containing block.
This is a paragraph. It should be offset two (2) em from the right of its containing block.
This is a paragraph. It should be offset two (2) em from the top of its containing block.
This is a paragraph. It should be offset two (2) em from the bottom of its containing block.
This is a paragraph. It should be offset two (2) em from the top of its containing block.
This is a paragraph. It should be offset two (2) em from the bottom of its containing block.