HTML <rt> Tag


A ruby annotation:

漢 <rt> ㄏㄢˋ </rt>

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Definition and Usage

The <rt> tag defines an explanation or pronunciation of characters (for East Asian typography) in a ruby annotation.

Use the <rt> tag together with the <ruby> and the <rp> tags: The <ruby> element consists of one or more characters that needs an explanation/pronunciation, and an <rt> element that gives that information, and an optional <rp> element that defines what to show for browsers that not support ruby annotations.

Browser Support

The numbers in the table specify the first browser version that fully supports the element.

<rt> 5.0 5.5 Not supported 5.0 15.0

Differences Between HTML 4.01 and HTML5

The <rt> tag is new in HTML5.

Global Attributes

The <rt> tag also supports the Global Attributes in HTML.

Event Attributes

The <rt> tag also supports the Event Attributes in HTML.

Default CSS Settings

Most browsers will display the <rt> element with the following default values:

rt {
    line-height: normal;

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