block.tpl.php
<div id="block-<?php print $block->module .'-'. $block->delta; ?>" class="clear-block block block-<?php print $block->module ?>">
<?php if ($block->subject): ?>
<h2><?php print $block->subject ?></h2>
<?php endif;?>
<div class="content"><?php print $block->content ?></div>
</div>