@@ -862,7 +862,9 @@ In HTML and S5 output, the way math is rendered will depend on the
862862command-line options selected:
863863
8648641. The default is to render TeX math as far as possible using unicode
865− characters, as with RTF and Docbook output.
865+ characters, as with RTF and Docbook output. Formulas are put inside
866+ a `span` with `class="math"`, so that they may be styled differently
867+ from the surrounding text if needed.
866868
8678692. If the `--asciimathml` option is used, TeX math will be displayed
868870 between $ characters, as in LaTeX, and the [ASCIIMathML] script will