{% set image = record.attachments.get(this.image) %}
<div class="banner{% if this.class %} banner-{{ this.class }}{% endif %}" style="background-image: url({{ image|url
  }}); height: {{ {
    'full': image.height,
    'half': image.height / 2,
    }.get(this.height, this.height) }}px">{% if this.contents %}
  {{ this.contents }}
{% endif %}</div>