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HTML default Attribute

Definition and Usage

The default attribute is a boolean attribute.

When present, it specifies that the track is to be enabled if the user's preferences do not indicate that another track would be more appropriate.

Note: There must not be more than one <track> element with a default attribute per <media> element.

Applies to

The default attribute can be used on the following element:

Element Attribute
<track> default



A video with two subtitle tracks. "English" subtitle is the default:

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

Browser Support

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

default 18.0 10.0 31.0 6.0 15.0