Text Alignment
txt-align
Controls the alignment of text within its bounding box for a video text overlay.
txt-align accepts comma-separated horizontal and vertical alignment values. Horizontal values: left, center, right. Vertical values: top, middle, bottom.
Use txt-align[N] to set alignment for a specific text layer.
This parameter works identically to txt-align in the Rendering API.
For the full list of text overlay parameters, see the Text Overlays overview.