Come posso ottimizzare questo codice :

codice:
<table width='430' border='1' bordercolor='#000000'>
 <tr>
  <td align=right width='30%'>a</td>
  <td align=left width='70%'>a</td>
 </tr>
 <tr> 
  <td align=right width='30%'>b</td>
  <td align=left width='70%'>b</td>
 </tr>
 <tr> 
  <td align=right width='30%'>c</td>
  <td align=left width='70%'>c</td>
 </tr>
 <tr> 
  <td align=right width='30%'>d</td>
  <td align=left width='70%'>d</td>
 </tr>
 <tr> 
  <td align=right width='30%'>e</td>
  <td align=left width='70%'>e</td>
 </tr>
 <tr> 
  <td align=right width='30%'>f</td>
  <td align=left width='70%'>f</td>
 </tr>
</table>
con i css ?