Align=right dosent work ?

Hei!

Have this code for a header:

<header>
<table width="100%" align="left" border="1" padding-right="10px" class="headertabell">
<tr class="rapport1_del5">

<td class="rapport1_del5" align="left">
<a href="#" onClick="window.print()"> <img src="../images/skriver.png" TYPE="button" align="left" /> Printer </a></td>
<td class="rapport1_del5" align="left">
<a href="MPDF/examples/PDF6.php?brukerID=<?php echo $brukerID ?>&kundeid=<?php echo $kundeid ?>" target="_self"><img src="../images/PDF.png" align="left"/> PDF </a></td>
<td class="rapport1_del5" align="right">
<a href="#" onClick="window.print()"> <img src="../images/skriver.png" TYPE="button" align="left" /> Logg ut </a></td>
</tr>
</table>

</header >

Select allOpen in new window

***** CSS ********
.rapport1_del5
{
    background-color: #efefef;
    border: none ! important;
    box-shadow: none ! important;
    padding-left:15px;
      height:30px;
      padding-top:3px;
}


My problem is this code:
<td class="rapport1_del5" align="right">
<a href="#" onClick="window.print()"> <img src="../images/skriver.png" TYPE="button"

It dosent align="right", but it align="left"  WHY ?