WEBVTT
Cues should position at different horizontal positions with different alignments.

1
00:00:00.000 --> 00:00:30.500 position:10% align:start
Bear is Coming!!!!!
Positioning on the left bottom, start aligned, and
first character rendering position is at 10% of width.

2
00:00:31.000 --> 00:00:45.500 position:20% align:middle
I said Bear is coming!!!!
Positioning on the bottom left, middle aligned, and
middle character rendering position of each line is at 20% of width.

3
00:01:01.000 --> 00:02:00.500 align:end position:80%
I said Bear is coming now!!!!
Positioning on the bottom right, end aligned, and
last character rendering position of each line is at 80% of width.
