Quote:
Originally Posted by KevinH
txt/css is not a valid media-type. the actual media type should be text/css
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Not sure what to suggest for a fix. Sigil used to be able to edit this, at least in 2011

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Here's the relevent entries for the fonts in Three Men In A Boat:
Code:
<item id="fontinbold_font" href="fonts/Fontin-Bold.ttf" media-type="application/x-truetype-font"/>
<item id="fontinitalic_font" href="fonts/Fontin-Italic.ttf" media-type="application/x-truetype-font"/>
<item id="fontinregular_font" href="fonts/Fontin-Regular.ttf" media-type="application/x-truetype-font"/>