template.py

template.py

template = """
{% extends base %}

<!-- goes in head -->
{% block postamble %}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
{% endblock %}

<!-- goes in body -->
{% block contents %}
{{ app_title }}
<p>This is a Panel app with a custom template allowing us to compose multiple Panel objects into a single HTML document.</p>
<br>
<div class="container">
  <div class="row">
    <div class="col-sm">
      {{ embed(roots.A) }}
    </div>
  </div>
</div>
{% endblock %}
"""