Header navigation pushes content

I will appreciate any help on this one!!
A couple of months ago i switched theme from Chronicles to Una. When I used Chronicles I added pages to my header navigation, but when I removed on of the pages today using Una, the content moved to the end of the last page in the header navigation.

https://www.funlightnonstop.com

Atm I have inserted ‘float:left;’ after ‘clear:both;’ in #navigation, just so it will look okay, but that makes the pages in the header navigation loose their links:

#header{padding-top:10px;}
#navigation{clear:both;float:left;}
#content{padding-top:270px;float:left;width:580px;display:inline;padding-bottom:15px;overflow:hidden;}

from the header.php:

<div id="navigation">
<ul>
<li><a href="<?php echo get_option('home'); ?>/">hjem</a></li>
<?php wp_list_pages('depth=1&amp;title_li='); ?>
</ul>

What do I have to do to make the content stay in place AND the links to the pages in the header navigation to work??