PRS-T1 ePub not using specified Amasis font

[democrite]

Hi,

I normally change the CSS files of all my ePubs so they use Amasis. For one particular one (with a calibre style sheet), it doesn't. I really can't figure out why. Maybe someone has an idea?

Below is the only relevant part of the CSS (I think) that works everywhere else. I've gone over it a zillion times and really am clueless.

edit: and font switching seems to not work either.

@font-face {font-family: sans-serif; font-weight: normal; font-style: normal; src: url(res:///ebook/fonts/AmasisMTW1G.otf)}
@font-face {font-family: sans-serif; font-weight: normal; font-style: italic; src: url(res:///ebook/fonts/AmasisMTW1G-Italic.otf);}
@font-face {font-family: sans-serif; font-weight: bold; font-style: normal; src: url(res:///ebook/fonts/AmasisMTW1G-Bold.otf);}
@font-face {font-family: sans-serif; font-weight: bold; font-style: italic; src: url(res:///ebook/fonts/AmasisMTW1G-BoldItalic.otf);}     

@font-face {font-family: serif; font-weight: normal; font-style: normal; src: url(res:///ebook/fonts/AmasisMTW1G.otf)}
@font-face {font-family: serif; font-weight: normal; font-style: italic; src: url(res:///ebook/fonts/AmasisMTW1G-Italic.otf);}
@font-face {font-family: serif; font-weight: bold; font-style: normal; src: url(res:///ebook/fonts/AmasisMTW1G-Bold.otf);}
@font-face {font-family: serif; font-weight: bold; font-style: italic; src: url(res:///ebook/fonts/AmasisMTW1G-BoldItalic.otf);}

…
.calibre12 {
    font-family: "serif";
    text-indent:1.1em
    }
.calibre2 {
    font-family: "serif";
    }

<p class="calibre12"><span class="calibre2">«*Eh bien, voilà,
reprit-il, je viens pour la chambre que vous avez à louer.*»</span></p>

[JSWolf]

Could maybe be the quotes around serif that aren't needed.

[democrite]

That was exactly it. thanks!