Help with header menu
I want to add more links to my header. I'm not sure of the write coding as far as whether to add <li>, <ul> or none of the above after the last drop down link. Any help?
<a name="top" id="top"></a>
<div class="menu">
<ul>
<li id="nav-portal"><a href="{$mybb->settings['bburl']}/portal.php"><i style="font-size: 12px;" class="fa fa-home fa-fw"></i> Home</a></li>
<li id="nav-forums"> <a href="{$mybb->settings['bburl']}/index.php"><i style="font-size: 12px;" class="fa fa-comments fa-fw"></i> Forums</a></li>
<li id="nav-search"> <a href="{$mybb->settings['bburl']}/search.php"><i style="font-size: 12px;" class="fa fa-search fa-fw"></i> {$lang->toplinks_search}</a></li>
<li id="nav-member"> <a href="{$mybb->settings['bburl']}/memberlist.php"><i style="font-size: 12px;" class="fa fa-users fa-fw"></i> Members</a></li>
<li id="nav-calendar"> <a href="{$mybb->settings['bburl']}/calendar.php"><i style="font-size: 12px;" class="fa fa-calendar fa-fw"></i> {$lang->toplinks_calendar}</a></li>
<li id="nav-blog"> <a href="{$mybb->settings['bburl']}/mybblog.php"><i style="font-size: 12px;" class="fa fa-book fa-fw"></i> Blog</a></li>
<li id="nav-shop"> <a href="{$mybb->settings['bburl']}/shop.php?action=shop"><i style="font-size: 12px;" class="fa fa-shopping-cart fa-fw"></i> Shop</a></li>
<li id="nav-facebook"> <a href="http://facebook.com/"><i style="font-size: 12px;" class="fa fa-facebook"></i> Follow</a>
</li>
<li id="nav-help"> <a href="{$mybb->settings['bburl']}/misc.php?action=help"><i style="font-size: 12px;" class="fa fa-info fa-fw"></i> {$lang->toplinks_help}</a></li>
<li><a href='javascript:;' id="extraslink"><i style="font-size: 14px;" class="fa fa-caret-down fa-fw"></i>Extras</a></li>
<ul>
<div id="extraslink_popup" class="popup_menu" style="display: none;">
<div class="popup_item_container">
<a href="{$mybb->settings['bburl']}/stats.php" class="popup_item">Forum stats</a>
</div>
<div class="popup_item_container">
<a href="{$mybb->settings['bburl']}/showteam.php" class="popup_item">Show team</a>
</div>
<div class="popup_item_container">
<a href="{$mybb->settings['bburl']}/search.php?action=getnew" class="popup_item">{$lang->welcome_newposts}</a>
</div>
<div class="popup_item_container">
<a href="{$mybb->settings['bburl']}/search.php?action=getdaily" class="popup_item">{$lang->welcome_todaysposts}</a>
</div>
<div class="popup_item_container">
<a href="*" class="popup_item">Link five here</a>
</div>
</div>
</div>