Merge branch 'hotfix/v2.2.5'

css/dart_iframe_min_height.css

@@ -0,0 +1,18 @@
+/* For learning assets from dart.harvard.edu that are
+   embedded in Canvas modules, ensure that the height
+   of the iframe is never smaller than the maximum
+   height of the iframe source content.
+
+   This code prevents an additional scrollbar from being
+   created when Canvas renders a ExternalURL iframe
+   with a height smaller than 800px.
+
+   For questions about this code, please contact the
+   VPAL Services Team:
+     [email protected]
+     [email protected]
+     [email protected]
+*/
+iframe#file_content[src*="dart.harvard.edu"] {
+    min-height: 800px;
+}