Last modified: 2008-06-15 18:48:53 UTC
The rule span.texhtml { font-family: serif; } should become span.texhtml { font-family: Cambria, serif; } The reason is that Cambria is able to display the combination "Latin lowercase a with dot above" whereas Times New Roman is not because it does not contain the glyph for "combining dot above". This is a Microsoft problem, of course and as always. Note that Cambria does not extend Times New Roman because it does not conain the Hebrew alphabet; therefore this rule cannot be universal. It is, however, very reasonable to apply it to formulae. Note also that "Cambria Math" contains several mathematical symbols which Cambria does not contain; I do not recommend prescribing it though because it does not include an italic shape.
<math>\dot a</math> produces a PNG under all settings I try, never HTML, so the stated use case appears to be irrelevant. If I'm mistaken, please reopen.