Defines screenshot of map as background image of iframe for visibility without Javascript

en/index.html

@@ -75,7 +75,7 @@
                 <p class="big">Eisenbahnstraße 1, 72072 Tübingen</p>
                 <p>The building is accessible by foot from the city center in about 15 minutes, from the main train station in about 10 minutes, or from the bus stops "Blaue Brücke" and "Landestheater".</p>
                 <p>We will meet in the rooms and areas of the ground floor and the 6th and 7th floors. All locations are barrier-free accessible.</p>
-                <iframe width="800" height="500" src="https://www.openstreetmap.org/export/embed.html?bbox=9.061722457408907%2C48.51540328325071%2C9.064798951148989%2C48.517036085911435&amp;layer=mapnik&amp;marker=48.516218802800694%2C9.063262045383453" style="border: 1px solid black"></iframe><br/><small><a href="https://www.openstreetmap.org/?mlat=48.51622&amp;mlon=9.06326#map=19/48.51622/9.06326">View Larger Map</a></small>
+                <iframe id="map" width="800" height="500" src="https://www.openstreetmap.org/export/embed.html?bbox=9.061722457408907%2C48.51540328325071%2C9.064798951148989%2C48.517036085911435&amp;layer=mapnik&amp;marker=48.516218802800694%2C9.063262045383453" style="border: 1px solid black"></iframe><br/><small><a href="https://www.openstreetmap.org/?mlat=48.51622&amp;mlon=9.06326#map=19/48.51622/9.06326">View Larger Map</a></small>
             </div>
             
 

index.html

@@ -79,7 +79,7 @@
 					Bushaltestellen „Blaue Brücke“ und „Landestheater“ zu erreichen.</p>
 				<p>Wir treffen uns in den Räumen und auf den Flächen des Erdgeschoss und der Etagen 6 und 7. Alle Orte sind
 					barrierefrei zu erreichen.</p>
-				<iframe width="800" height="500"
+				<iframe id="map" width="800" height="500"
 					src="https://www.openstreetmap.org/export/embed.html?bbox=9.061722457408907%2C48.51540328325071%2C9.064798951148989%2C48.517036085911435&amp;layer=mapnik&amp;marker=48.516218802800694%2C9.063262045383453"
 					style="border: 1px solid black"></iframe><br /><small><a
 						href="https://www.openstreetmap.org/?mlat=48.51622&amp;mlon=9.06326#map=19/48.51622/9.06326">Größere Karte

styles.css

@@ -23,6 +23,10 @@ body {
 	margin: 0;
 }
 
+#map {
+	background-image: url("image/map.png");	
+}
+
 .banner {
 	vertical-align: middle;
 	position: absolute;