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Using HTML <rt> Tags for Ruby Text

Reading time 1 min
Published Jun 29, 2017
Updated Oct 11, 2019

Ruby Text: Main Tips

  • <rt> tags define ruby text. They must be placed within <ruby> tags.
  • You may use it as a pronunciation guide for East Asian characters, as there are multiple options for a lot of them.
  • The rt tag has been introduced in HTML5, along with the other ruby text characters (<ruby> and <rp>).
  • Global attributes are supported.

Using rt HTML Tags

HTML <rt> tags define ruby text elements:

Example
<ruby><rt>Kan</rt><rt>ji</rt>
</ruby>

Ruby text is displayed in smaller font above the Chinese, Japanese, or Korean characters. It is a hint to the correct pronunciation. Some characters have multiple pronunciation options that affect meaning as well.

Note: ruby text elements can contain inline elements. However, they cannot have <ruby> elements as their descendants.

Browser support

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Chrome
5+
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Edge
-
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Firefox
38+
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IE
5+
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Opera
15+
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Safari
5+

Mobile browser support

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Chrome
All
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Firefox
38+
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Opera
14+
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Safari
All