{% load cms_tags %}
<div class="card" style="background-color: {{ instance.background_color }}; color: {{ instance.text_color }};">
    <div class="card-header">
        <h3>{{ instance.title }}</h3>
        {% if instance.subtitle %}<h5>{{ instance.subtitle }}</h5>{% endif %}
    </div>
    <div class="card-body">
        {{ instance.body_text }}
    </div>
</div>