[humndislocation]

It's reasonable for the text to be rendered in a different font, if it can't find the requested font on the system.

That's why there are multiple fonts specified in this style declaration
font: small Baskerville, Georgia, serif;

If it can't find the first one, it'll fall back to the next one in the list. If it can't find Small Baskerville or Georgia, it'll fall back to whatever the default serif font is.

Another important thing to be aware of, is that depending on the contents (or abscence of the DOCTYPE entries at the top of the document, Firefox might render the content in "quirks mode", or "almost standard" mode, which renders the page in a non-standard way, to deal with older pages that were written to specifically cater for the quirks of older browsers.

As for the drop shadow, I did a bit of googling, and it looks like firefox doesn't fully support it yet.

As for IE, IE has always been a horrible browser, most likely due to Microsoft's habit of supporting a standard, then changing or adding things to their version, so that competing software that follows the standard fucks up when it tries to read files that use their non-standard extensions.