Using the MapBox framework for the full mapping system and custom SVG.
<div class="map" data-map=".listing"></div>
{{#if map.id}}
<div class="map" data-map="{{ map.id }}" data-longitude="{{ map.longitude }}" data-latitude="{{ map.latitude }}"></div>
{{else}}
<div class="map" data-map="{{ map }}"></div>
{{/if}}