JSFiddle - React, Tailwind, and code Playground

HTML

<fieldset class="field_set">
    <legend>box</legend>
     <table width="100%" border="0" cellspacing="0" cellpadding="0">
           <tr>
               <td>&nbsp;</td>
           </tr>
      </table>
</fieldset>

CSS

.field_set{
 border: 1px #F00 solid;
}