Originally Posted by kovidgoyal
IIRC, LRF font rescaling doesn't work if the font sizes are specified in inline styles and not just block level styles.
Checked stylesheet.css: The body style only provides margin specifications. Text on individual pages is enclosed in standard P tags, with no font sizes specified.
Is there a setting in Calibre that is inserting font sizes, something that can be reset to omit that? Or is Calibre looking for a font declaration of some sort in the ePub files?