<RB> | NN n/a IE n/a HTML X1.1
<RB>...</RB> | End Tag: Required
The rb element denotes the base text within a ruby-enhanced section of content. This is the regular text to which ruby annotation is added. IE 5 and later supports ruby text, but the rb element is not explicitly supported, and is assumed to automatically apply to text other than what is encased inside rt elements.
Example
    <RUBY>
      <RB>03</RB><RT>Month</RT>
      <RB>04</RB><RT>Day</RT>
      <RB>2003</RB><RT>Year</RT>
    </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