title: Map vanishes after defining new height
body: <p>i am currently trying to integrate a responsive map on my website, which i built with WIX code.
  I am basically starting off with the code provided by Here maps to create an interactive map (<strong><a href="https://developer.here.com/api-explorer/maps-js/v3.0/maps/map-at-specified-location" rel="nofollow noreferrer">https://developer.here.com/api-explorer/maps-js/v3.0/maps/map-at-specified-location</a></strong>).
  I integrated the code into the html iframe and it works without any problems. But as soon as i want to define the height (for responsive matters), the map vanishes and will only return if i type in the div height in px.</p>
  
  <p>I am not that much of a talent when it comes to coding but i am trying really hard to get this stuff done.</p>
  
  <p>Best regards,</p>
  
  <p>Daud</p>