HTML <rt> tag
Browser Support
IE 9 +, Firefox, Opera, Chrome and Safari support <rt> tag.
Note: IE 8 or earlier versions of IE browser does not support <rt> tag.
Tag definitions and instructions
<Rt> tag defined characters (Chinese phonetic or character) interpretation or pronunciation.
The <rt> tag and the <ruby> and <rp> tag to use:
<Ruby> element consists of one or more requires explanation / pronunciation of characters and a provider of the information <rt> elements, also includes an optional <rp> element is defined when the browser does not support the "ruby" element is displayed when content.
Differences between HTML 4.01 and HTML5
<Rt> tag is new in HTML5 tags.
Global Properties
<rt> tag supports HTML global properties .
Event Properties
<rt> tag supports HTML event properties .