A WebVTT-defined line offset, represented by a value from the following list:
- a number: The line offset is expressed in a number of text lines or a percentage of the video viewport height or width.
- 'auto': The line offset depends on the other showing tracks.
A WebVTT-defined line offset, represented by a value from the following list:
- a
number: The line offset is expressed in a number of text lines or a percentage of the video viewport height or width.-
'auto': The line offset depends on the other showing tracks.