anchor.diff:  The limitation will remain until AsciidoctorJ PDF upgrades to Prawn 2.x (an upgrade that is waiting on AsciidoctorJ to migrate to JRuby 9000).
   For more details, see http://discuss.asciidoctor.org/Asciidoctor-YAML-style-file-for-PDF-and-maven-td3849.html[this thread].
   . Target may be an absolute path or a path relative to the value of the `pdf-stylesdir` attribute.
  +. Percentage unit can be % (relative to content height) or vh (relative to page height).
   
   === Prose
   
  
positive.code: 
  |align
  |<<image-alignments,Image alignment>> +
  |title_page:
    logo:
      align: right
  
negative.code:     +image: image:logo.png[pdfwidth=25%]+
  
  |top
  |Percentage^[3]^ +
  (default: 10%)
  |title_page:
    logo:
  