Need help to modify calendar-month.tpl.php [#1908496]

Hi,

I want to change some the display of some elements in my calendar.
I've done the most important part of my changes with CSS, but there's a point where I'm stuck : I want to make the

go hover the
(with a transparency effect).

But it seems that I can't play with position (absolute/relative) with table elements, it would be easier if I get some

instead of a table.

But when I open the template calendar-month.tpl.php, I get this code with wich I don't know what to do :

<table class="full">
  <thead>
    <tr>
      <?php foreach ($day_names as $id => $cell): ?>
        <th class="<?php print $cell['class']; ?>" id="<?php print $cell['header_id'] ?>">
          <?php print $cell['data']; ?>
        </th>
      <?php endforeach; ?>
    </tr>
  </thead>
  <tbody>
    <?php 
      foreach ((array) $rows as $row) {
        print $row['data'];
      } ?>
  </tbody>
</table>

Apparently, "$row['data']" is the array with all my calendar informations.
How can I get the differents "rows" to display some in

(to keep the table display) and other in

(to move them with css> ?

I hope I'm understandable :)

thanks in advance for your help !