table tfoot показывать на верху таблицы

tfoot { 
  display: table-row-group; 
  /*display: table-header-group; /* или так */ 
}

<table> 
  <thead> 
    <tr> 
      <th>Month</th> 
      <th>Savings</th> 
    </tr> 
  </thead> 
  <tfoot> 
    <tr> 
      <td>Sum</td> 
      <td>$180</td> 
    </tr> 
  </tfoot> 
  <tbody> 
    <tr> 
      <td>January</td> 
      <td>$100</td> 
    </tr> 
    <tr> 
      <td>February</td> 
      <td>$80</td> 
    </tr> 
  </tbody> 
</table>