HTML <rp> Tag

The HTML <rp> is used to provide fallback text to be shown by user agents that don't support ruby annotations

Ruby annotations are often used in East Asian typography.

Ruby (also spelt rubi) characters are small, annotative glosses that can be placed above or to the right of a Chinese character when writing logographic languages such as Chinese or Japanese to show the pronunciation. Ruby annotations, are usually used as a pronunciation guide for relatively obscure characters.


The <rp> tag is written as <rp></rp> with the fallback text inserted between the start and end tags.

Like this:


Here's an example of using the <rp> element to display paranthesis to user agents that don't support ruby annotations. The paranthesis will only be displayed if the browser/user agent doesn't support ruby annotations.


Attributes can be added to an HTML element to provide more information about how the element should appear or behave.

The <rp> element accepts the following attributes.


Global Attributes

The following attributes are standard across all HTML elements. Therefore, you can use these attributes with the <rp> tag , as well as with all other HTML tags.

For a full explanation of these attributes, see HTML 5 global attributes.

Event Handlers

Event handler content attributes enable you to invoke a script from within your HTML. The script is invoked when a certain "event" occurs. Each event handler content attribute deals with a different event.

Most event handler content attributes can be used on all HTML elements, but some event handlers have specific rules around when they can be used and which elements they are applicable to.

For more detail, see HTML event handler content attributes.