Some text.
.Bf -f latex
\eemph{things}
.Ef
.Bf -f xhtml
<em>things</em>
.Ef
More text.
More:
.Ft -f latex \eemph{things}
.Ft -f xhtml <em>cosas</em>
.Bl
.It
And textit:
.Ft -f latex \etextit{things}
That's it.
.El
Some text:
.Bf -f xhtml
xhtml text\"comment
.Ef
Some text.
.Ft -ns -f xhtml <em>"'&gt</em>