This is not supported by HTML 5 (see CSS fond-size) however it's still rendered by browsers and should be supported by M2Doc.
An example:
<p><font size="1pt">This is some text! (size=1pt)</font></p>
<p><font size="2pt">This is some text! (size=2pt)</font></p>
<p><font size="3pt">This is some text! (size=3pt)</font></p>
<p><font size="4pt">This is some text! (size=4pt)</font></p>
<p><font size="5pt">This is some text! (size=5pt)</font></p>
<p><font size="6pt">This is some text! (size=6pt)</font></p>
<p><font size="7pt">This is some text! (size=7pt)</font></p>
<p><font size="8pt">This is some text! (size=8pt)</font></p>
<p><font size="9pt">This is some text! (size=9pt)</font></p>
<p><font size="10pt">This is some text! (size=10pt)</font></p>
This is not supported by HTML 5 (see CSS fond-size) however it's still rendered by browsers and should be supported by M2Doc.
An example:
Note: above 7 the rendered size if the same.