bdo
<bdo> . . . </bdo>
Stands for “bidirectional override” and is used to indicate a selection of text that reads in
the opposite direction than the surrounding text. For instance, in a
left-to-right reading document, the bdo element may
be used to indicate a selection of Hebrew text that reads right to
left (rtl).
Flow content, phrasing content, palpable content
Where phrasing content is expected
Phrasing content
Required/Required