site.url }}">
    <meta property="og:title" content="{{ site.title }}">
    <meta property="og:description" content="{{ site.description }}">
    <meta property="og:image" content="{{ site.url }}/assets/images/webstack_banner_cn.png">
    <meta property="og:site_name" content="{{ site.title }}">
    <!-- / Twitter Cards -->
    <meta name="twitter:card" content="summary_large_image">
    <meta name="twitter:title" content="{{ site.title }}">
    <meta name="twitter:description" content="{{ site.description 