\Configure{radical}
{\HCode{<span class="msqrt">%
\add:description{begin-root}{\a:speak:radical}}%
\special{t4ht\string~!e<<span>}%
\special{t4ht\string~!e></span>%
\add:description{end-root}{\b:speak:radical}</span>}%
\special{t4ht\string~!ee/}%
\special{t4ht\string~!ese-}%
}
-_-_-