<RBC>, <RTC> | NN n/a IE n/a HTML X1.1
<RBC>...</RBC> <RTC>...</RTC> | End Tag: Required
If you want to string together a contiguous sequence of ruby base items and their associated ruby text items, you can group all base items and all text items together inside rbc and rtc containers, respectively. The number of items inside the rbc and rtc elements should be the same so that the browser can keep the base and ruby text items together. Using this approach does not degrade well in browsers that do not support ruby text.
Example
    <RUBY>
      <RBC>
        <RB>03</RB><RB>04</RB><RB>2003</RB>
      </RBC>
      <RTC>
        <RT>Month</RT><RT>Day</RT><RT>Year</RT>
      </RTC>
    </RUBY>
Object Model Reference
    [window.]document.getElementById(elementID)
Element-Specific Attributes
None.
Element-Specific Event Handler Attributes
None.

lang | NN 3 IE 4 HTML 4
lang="languageCode" | Optional
The language being used for the element's attribute values and content. A browser can use this information to assist in proper rendering of content with respect to details such as treatment of ligatures (when supported by a particular font or required by a written language), quotation marks, and hyphenation. Other applications and search engines might use this information to aid the selection of spell-checking dictionaries and the creation of indices.
Example
    <SPAN lang="de">Deutsche Bundesbahn</SPAN>
Value
Case-insensitive language code.
Default
Browser default.
Object Model Reference
    [window.]document.getElementById(elementID).lang