'center' bpi not centering text

[mattretzer]

It's being overridden by something(s) in the css, presumably with greater specificity.
Test docx and html here.
CSS in pdf.css for .center is being ignored.
Tried oneoff_pdf.css like so:

p.center {
  text-align-last: center;
}

... to override CSS for p; this worked in jsbin but not for bookmaker, should test with prince locally. This worked for this file, but would not make sense to apply globally in base css:

p.center.Dateline-Chapterdl {
  text-align-last: center;
}