Attribute characteristics and purpose:
- helps browsers and search engines in various ways (better detection of cultural practices), helps speech synthesizers, helps spelling and grammar checkers, etc...
- specifies the direction of the text
- in combination with the <bdo> element dir attribute is required while all other usage is implied
- direction is inherited and may be overridden
- possible values are "ltr" and "rtl"; default value is "ltr" (left-to-right)
HTML i18n attributes: