subtitleBottomMarginPosition

This optional attribute can be set if positioning of the subtitle is required. The value of this attribute will be set as percentage of bottom margin (extra space) on the bottom side of the subtitle view allowing the client to position the subtitle as required.

Note:

1. This space is outside the subtitle view's bounds. subtitleBottomMarginPosition value should be positive.

2. This will override the positioning of the subtitle embedded in the source.