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Ua

HTML <track> Tag


Example

A video with subtitle tracks for two languages:

<video width="320" height="240" controls>
  <source src="forrest_gump.mp4" type="video/mp4">
  <source src="forrest_gump.ogg" type="video/ogg">
  <track src="fgsubtitles_en.vtt" kind="subtitles" srclang="en" label="English">
  <track src="fgsubtitles_no.vtt" kind="subtitles" srclang="no" label="Norwegian">
</video>

Definition and Usage

The <track> tag specifies text tracks for <audio> or <video> elements.

This element is used to specify subtitles, caption files or other files containing text, that should be visible when the media is playing.

Tracks are formatted in WebVTT format (.vtt files).


Browser Support

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

Element
<track> 23.0 10.0 31.0 6.0 12.1

Optional Attributes

Attribute Value Description
default default Specify that the track is to be enabled if the user's preferences do not indicate that another track would be more appropriate
kind captions
chapters
descriptions
metadata
subtitles
Specify the kind of text track
label text Specify the title of the text track
src URL Required. Specify the URL of the track file
srclang language_code Specify the language of the track text data (required if kind="subtitles")

Global Attributes

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


Event Attributes

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


Related Pages

HTML tutorial: HTML Video

HTML tutorial: HTML Audio

HTML DOM reference: Track Object


Default CSS Settings

None.