Wrap the order contents of the thank_you.html template with a block
</div>
</div>
+ {% block order_contents %}
<div class="sub-header">
<h2>{% trans "Order contents" %}</h2>
</div>
</div>
{% endblock basket_totals %}
+ {% endblock order_contents %}
+
{% block order_tracking %}
{% if not order.user %}
<div class="sub-header">
