chromium/third_party/blink/web_tests/external/wpt/html/semantics/embedded-content/media-elements/track/track-element/resources/settings.vtt

WEBVTT
Cue settings may be separated by spaces or tabs.

1
00:00:00.000 --> 00:00:30.500 line:100% align:start
Bear is Coming!!!!! One blank.

2
00:00:31.000 --> 00:01:00.500   position:40% vertical:rl line:15%
I said Bear is coming!!!! Several blanks.

3
00:01:01.000 --> 00:02:00.500	align:middle position:10%
I said Bear is coming now!!!! Tab separator.

4
00:02:01.000 --> 100:20:00.500		line:95%	vertical:lr align:end
I said Bear is coming now!!!! Tab separators.