Menüyü ortalamak

Arkadaşlar bir türlü beceremedim. CSS bilgim iyi değil açıkcası.

 
/* horizontal tabbed menu */
#tabs { background: #fff url(images/tabmenu.gif) no-repeat top left; color: #000; height: 39px; width:inherit;text-align: center; padding: 0; margin: 0; }
#tabs ul {margin:0 auto 0 auto; padding:0; width:inherit; }
#tabs li { display: inline; height: 39px; }
#tabs li a { float: left; background: #fff url(images/barbg.gif) no-repeat; color: #808080; padding: 8px 0; width: 82px; text-align: center; font-weight: bold; text-decoration: none; }
#tabs li a:hover { background: #fff url(images/barcurrent.gif) no-repeat; color: #000; }
#tabs .current a{ background: #fff url(images/barcurrent.gif) no-repeat; color: #2C71AE; } 
#tabs .current_page_item a{ background: #fff url(images/barcurrent.gif) no-repeat; color: #2C71AE; }
.key { text-decoration: underline; }

Buyur kardeş

<div id="header">
    <div id="logo">
<h1><a href="<?php echo get_settings('home'); ?>/"><?php bloginfo('name'); ?></a></h1>
    </div>
     </div>
     <div id="tabs">
           <ul style="width: center; margin: 0 auto 0 auto">  
<li><a href="<?php echo get_settings('home'); ?>" accesskey="H">Anasayfa</a></li> 
<?php wp_list_pages('title_li=&depth=1' ); ?>
    </ul>
     </div>
     <div id="search">
    <form id="searchform" method="get" action="<?php echo get_settings('home'); ?>">
<p><input type="text" class="search" name="s" id="s" value="<?php echo wp_specialchars($s, 1); ?>" /> <input type="submit" value="Ara" class="button" /></p>
    </form>
     </div> 
    
     <div class="gboxtop"></div>
     <div class="gbox">
<p><center>Web sitemiz yenilenmiştir.</center></p>
     </div>

<div id="header">
    <div id="logo">
<h1><a href="<?php echo get_settings('home'); ?>/"><?php bloginfo('name'); ?></a></h1>
    </div>
     </div>
     <div id="tabs">
           <ul style="width: center; margin: 0 auto 0 auto">  
<?php wp_list_pages('title_li=&depth=1' ); ?>
    <a href="<?php echo get_settings('home'); ?>" accesskey="H">Anasayfa</a>
           </ul>
     </div>
<div id="search">
    <form id="searchform" method="get" action="<?php echo get_settings('home'); ?>">
<p><input type="text" class="search" name="s" id="s" value="<?php echo wp_specialchars($s, 1); ?>" /> <input type="submit" value="Ara" class="button" /></p>
    </form>
     </div> 
    
     <div class="gboxtop"></div>
     <div class="gbox">
<p><center>Web sitemiz yenilenmi&thorn;tir.</center></p>
     </div>