The text-align element is used to add aligned text to the current page.
Text align works by using the x1, y1 as a point around which the text aligns.
By default, x1 is the page width divided by 2 and y1 is the page height divided by 2. This means that the default alignment point is the center of the page.
<text-align y1="400" align="center" value="heading"/>
<text-align style="gray" value="Blank Page" align="center" rotation="90"/>