The @dir attribute
  
  
  The @dir attribute provides instructions to
    processors about how bidirectional text is rendered.
The @dir attribute identifies or overrides the
        text directionality. The following values are valid:
- lro
- Indicates an override of the Unicode Bidirectional Algorithm, forcing the element into left-to-right mode.
- ltr
- Indicates left-to-right.
- rlo
- Indicates an override of the Unicode Bidirectional Algorithm, forcing the element into right-to-left mode.
- rtl
- Indicates right-to-left.
- -dita-use-conref-target
- See Using the -dita-use-conref-target value for more information.