{# base parts of the card #}
{# these macros can only be called #}
{% macro card(class_name=none) %}
{{ caller() }}
{% endmacro %}
{% macro card_header(class_name=none) %}
{% endmacro %}
{% macro card_body(class_name=none) %}
{% endmacro %}
{% macro card_footer(class_name=none) %}
{% endmacro %}