With the following test HTML:

<p class="Format"><em>Test of Some Text in Italic,</em> This is Normal Text.</p>

And the following CSS:

p.Format { text-transform:lowercase; }
p.Format:first-letter { text-transform:uppercase; }

The expected result would be:

But instead, I'm getting this:

The first letter ('T' in this case) is losing the emphasis tag for some reason...

Right, it seems to work when the italics are applied directly to the <p> element, or if the ::first-letter pseudo-element is moved to the <em> element. But in this particular case Prince is behaving differently to browsers, and I suspect the CSS specification. We will investigate.

Yes, I did noticed that browsers did work as intented.

I hope you find a way for it to work, as I can see no workaround to make it displays the formatting the way I want.

Prince 8.1 is now available with a fix for this issue, and also support for the ::first-line pseudo-element.

Now text-transform is not working with ::first-letter (it worked before).

p.Format:first-letter { text-transform:lowercase; color: red; }

Only the color changes in the code above.

It looks like this is a bug introduced when we fixed the other ::first-letter bug and added support for ::first-line. We will have to fix it and make a maintenance release; thanks for letting us know!

Today we have released Prince 8.1 rev 3, which includes a fix for this bug, so text-transform should work properly on ::first-letter again.