“——”
This notation is different in the browser and Prince
Font file cannot be uploaded

1. 7.png‎ 0.4 kB ‎
   in prince
2. 7normal.png‎ 0.6 kB ‎
   in browser

Which font are you using?

http://image.tubangzhu.com/updata/fonts/v1/90.woff

This looks fine:

<style>
/* Source Han Sans CN, Regular */
@font-face {
    font-family: "Source Han Sans CN";
    font-weight: normal;
    font-style: normal;
    font-stretch: normal;
    src: url("90.woff")
}
</style>
<p style="font-family: Source Han Sans CN">
“——”
</p>

Please see the attached PDF.

1. test.pdf‎ 4.2 kB

I use span to separate each character, like this:

<style>
    /* Source Han Sans CN, Regular */
    @font-face {
        font-family: "Source Han Sans CN";
        font-weight: normal;
        font-style: normal;
        font-stretch: normal;
        src: url("http://image.tubangzhu.com/updata/fonts/v1/90.woff")
    }
</style>
<p style="font-family: Source Han Sans CN">
    “<span>—</span><span>—</span>”
</p>

It seems that this font is using an OpenType substitution to replace the two glyphs with one glyph however Prince cannot apply substitutions across span boundaries at this time.

All right,thanks