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HTML <ruby> Tag

The <ruby>> tag defines furigana (also called yomigana or ruby), phonetic tips in Japanese and East Asian languages. The basic text annotation is placed in the <rp> tag. It is displayed in a small print above the hieroglyphs.

The <ruby> tag is one of the HTML5 elements.

The <rp> tag defines an alternative text, which is displayed in the browser not supporting the <ruby> tag.


The <rp> tag comes in pairs; the closing tag is required.


<!DOCTYPE html>
    <title>Title of the document</title>
    明日 <rp>(</rp><rt>Ashita</rt><rp>)</rp>



The <ruby> tag supports the Global Attributes and the Event Attributes.

How to style <ruby> tag

Common properties to alter the visual weight/emphasis/size of text in <ruby> tag:?

  • CSS font-style property sets the style of the font. normal | italic | oblique | initial | inherit
  • CSS font-family property specifies a prioritized list of one or more font family names and/or generic family names for the selected element.
  • CSS font-size property sets the size of the font.
  • CSS font-weight property defines whether the font should be bold or thick. CSS text-transform Property controls text case and capitalization.
  • CSS text-decoration property specifies the decoration added to text, and is a shorthand property for text-decoration-line, text-decoration-color, text-decoration-style

Coloring text in <ruby> tag:

  • CSS color property describes the color of the text content and text decorations
  • CSS background-color property sets the background color of an element.

Text layout styles for <ruby> tag:

  • CSS text-indent property specifies the indentation of the first line in a text block.
  • CSS text-overflow property specifies how overflowed content that is not displayed should be signaled to the user.
  • CSS white-space property specifies how white-space inside an element is handled.
  • CSS word-break property specifies where the lines should be broken.

Other properties worth looking at for <ruby> tag

Browser support

5+ 38+ 5+ 15+

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