bdo

The bdo element encloses a phrase that should be rendered in an explicit direction, right-to-left or left-to-right.

Use the bdo element when a Hebrew or Arabic composition needs to use a phrase which is natively written using a Latin-script, or vice-versa.

Normally all text rendering direction decisions are handled automatically by the Unicode bidirectional algorithm, and the bdo element is not needed.

dir

rtl or ltr

The rendering direction for the enclosed text. When omitted, the rendering direction is always reversed from the surrounding text.

bdi

The bdi element encloses a phrase that should employ the automatic Unicode bidirectional algorithm independently from its surrounding text.