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 |
Example
Example
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">
</video>
Browser Support
The numbers in the table specify the first browser version that fully supports the attribute.
| Attribute | |||||
|---|---|---|---|---|---|
| default | 18.0 | 10.0 | 31.0 | 6.0 | 15.0 |
