HTML 5 <rt> Tag
The HTML <rt> tag marks the ruby text component of a ruby annotation.
Ruby annotations are 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 <rt> tag was introduced in HTML 5.
Attributes
HTML tags can contain one or more attributes. Attributes are added to a tag to provide the browser with more information about how the tag should appear or behave. Attributes consist of a name and a value separated by an equals (=) sign, with the value surrounded by double quotes. Here's an example, style="color:black;".
There are 3 kinds of attributes that you can add to your HTML tags: Element-specific, global, and event handler content attributes.
The attributes that you can add to this tag are listed below.
Element-Specific Attributes
The following table shows the attributes that are specific to this tag/element.
| Attribute | Description |
|---|---|
| none |
Global Attributes
The following attributes are standard across all HTML 5 tags (although the tabindex attribute does not apply to dialog elements).
accesskeyautocapitalizeclasscontenteditabledata-*dirdraggablehiddenidinputmodeisitemiditempropitemrefitemscopeitemtypelangpartslotspellcheckstyletabindextitletranslate
For a full explanation of these attributes, see HTML 5 global attributes.
Event Handler Content Attributes
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.
onabortonauxclickonbluroncanceloncanplayoncanplaythroughonchangeonclickoncloseoncontextmenuoncopyoncuechangeoncutondblclickondragondragendondragenterondragexitondragleaveondragoverondragstartondropondurationchangeonemptiedonendedonerroronfocusonformdataoninputoninvalidonkeydownonkeypressonkeyuponlanguagechangeonloadonloadeddataonloadedmetadataonloadstartonmousedownonmouseenteronmouseleaveonmousemoveonmouseoutonmouseoveronmouseuponpasteonpauseonplayonplayingonprogressonratechangeonresetonresizeonscrollonsecuritypolicyviolationonseekedonseekingonselectonslotchangeonstalledonsubmitonsuspendontimeupdateontoggleonvolumechangeonwaitingonwheel
For a full list of event handlers, see HTML 5 event handler content attributes.