\input TeX4ht.sty
\Preamble{html,HTable}
\EndPreamble

\tt
\HTable B{
  [<] LEFT & [-C2] CENTER&
             [>] RIGHT &
             ~\BR~\BR~\cr
  [^] TOP  & [|] MIDDLE&
             [_] BOTTOM&
             [=] BASELINE &
             ~\BR~\BR~\cr
~~~~~~~~~~~~~~~~}

\bye