Using the new defaults, we don't need to pass options to the Navigation
control anymore. As a side effect, we get ZoomBox, but need to add css for
it to work properly. For users outside Vienna, an OSM fallback layer was
added which gets activated when the viewport does not intersect Vienna.
In current Webkit browsers, having translate3d on svg child elements
causes the positioning from the layer not to be inherited by the vector
layer content.
Uses the WMTS server of the ogdwien open data initiative of the City of Vienna. Shows how to build a fullscreen map that works well on both mobile and desktop clients. With lightweight permalinks and Geolocate control.
