$newline never
<table>
  <tbody>
    $forall coord <- review liveCoords lLength
      <tr .massinput--cell>
        ^{cellWdgts ! coord}
        <td>
          ^{fvInput (delButtons ! coord)}
  <tfoot>
    <tr .massinput--add>
      ^{addWdgts ! (0, 0)}
