Hi,

You may try this code:

<style>
td {
  border: 1px solid gold;
}
</style>

<table style="table-layout: fixed; width: 100%">
  <tr>
    <td style="word-wrap: break-word">
      LongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongLongWord
    </td>
  </tr>
</table>

Thanks