<div class="container pt-5 justify-content-center">
  <section>
    <div class="container py-3 preamble">
      <p>{% block body %}{{ this.body }}{% endblock %}
    </div>
  </section>
  <section>
    <div class="container">
      <div class="row">
        {% for child in site.query('/').filter(F.section_id != 'gsoc')|sort(attribute='key') %}
          <div class="col-sm-6 col-md-4 col-sm-12 col-xl-4 py-4">
            <div class="card h-100 p-2">
              <div class="card-body">
                <h2 cl