Take a look in your page source... I'm not making this up:
HTML Code:
<div class="paging">
<a href="#" rel="1">1</a><br />
<a href="#" rel="2">2</a><br />
<a href="#" rel="3">3</a><br />
<a href="#" rel="4">4</a>
</div>
There are many added </p> and <br /> in there that aren't shown in your code above. Try not putting the code on separate lines:
HTML Code:
<div class="paging"><a href="#" rel="1">1</a><a href="#" rel="2">2</a><a href="#" rel="3">3</a><a href="#" rel="4">4</a></div>