two different alignments within the same cue

Sorry if my understanding is lacking.  The following sample wants to create a single cue with three lines, one left aligned and the other right aligned.  This is a very common captioning style.  Does WebVTT allow for it?  The “position” tag can be used at the CUE level, but I’m talking about at the line level.:


4
00:00:09.530 --> 00:00:12.600
<left>this is left aligned</left>
                <center>this is center aligned</center>
                                             <right>this is right aligned</right>


Is there any way to describe it in WebVTT, short of breaking it into three CUEs with identical times and different positions?  Simulaneous lines with left and right alignment are much more common than bold and italic in caption authoring, and those have simple tags in WebVTT.  Perhaps adding simple tags for them, as above, would be advisable.  The region could be created such that the edges are positioned reasonably and the rest is simple to render, with very straight forward css handling.

Thanks.
—Brad

Received on Thursday, 23 June 2016 20:30:18 UTC