Merge pull request #76 from EO-College/clausmichele-patch-2

Update 2.1_data_discovery.md

lectures/2.1_data_discovery/2.1_data_discovery.md

@@ -523,10 +523,17 @@ Earth observation data access is not limited to a single platform or a single en
 - [STAC Index](https://stacindex.org/catalogs): A list of publicly available STAC APIs and Static Catalogs.
 
 
-<div style="border: 3px solid rgb(255, 255, 255); overflow: hidden; margin: 15px auto; max-width: 736px;">
-<iframe scrolling="yes" src="https://documentation.dataspace.copernicus.eu/APIs/openEO/Collections.html" style="border: 0px none; margin-left: -20px; height: 859px; margin-top: -500px; width: 900px;">
+<iframe 
+    width="1000" 
+    height="600" 
+    src="https://documentation.dataspace.copernicus.eu/APIs/openEO/Collections.html" 
+    title="openEO platform collections" 
+    frameborder="0" 
+    allowfullscreen
+    style="border: 5px solid #3A97C3; border-radius: 20px;">
 </iframe>
-</div>
+
+_The content above shows the data collections available with the openEO API at the Copernicus Data Space Ecosystem (CDSE). You can scroll and click on the names to discover more details._ [Open content in a new tab!](https://documentation.dataspace.copernicus.eu/APIs/openEO/Collections.html)
 
 ## How to search for data