<header>
    <div class="social">
        <a class="twitter" href="http://twitter.com/home?status={$base_url|urlencode}" target="_blank">
            Share on Twitter<div class="twittermask"></div></a>
        <a class="facebook" href="https://www.facebook.com/sharer/sharer.php?u={$base_url|urlencode}" target="_blank">Share on Facebook<div class="facebookmask"></div></a>
    </div>
</header>
<div class="wrapper">
