Menü altındaki boşluğu nasıl küçültürüm?

Kod:
<header>

        <div id="ust-panel">

            <div class="ust-panel">

                {$welcomeblock}

          <div id="oyunwiz-arama">

                {$quicksearch}

            </div>

        </div>    

    </div>

          <div class="clear"></div>

              <div id="logo">

<a href="{$mybb->settings['bburl']}/index.php"><img src="{$theme['logo']}" alt="{$mybb->settings['bbname']}" title="{$mybb->settings['bbname']}" /></a></div>

  <div class="clear"></div>

        <nav>

            <ul>

                  <li><a href="{$mybb->settings['bburl']}/index.php">Anasayfa</a></li>

                {$menu_portal}

                {$menu_search}

                {$menu_memberlist}

                {$menu_calendar}

              <li><a href="{$mybb->settings['bburl']}/misc.php?action=help" class="help">{$lang->toplinks_help}</a></li>

              <li><a href="{$mybb->settings['bburl']}/contact.php">İletişim</a></li>

            </ul>

        </nav>

    <div class="clear"></div>

            </header>

<div class="clear"></div>

<div id="container">

        <div id="header">

        <div id="content">

            <div class="wrapper">

                {$pm_notice}

                {$bannedwarning}

                {$bbclosedwarning}

                {$unreadreports}

                {$pending_joinrequests}

                {$awaitingusers}

                <navigation>

                <br />