Put Open edX logo in CMS footer

cms/static/sass/elements/_footer.scss

@@ -58,5 +58,22 @@
         }
       }
     }
+
+    // platform Open edX logo and link
+    .powered-by {
+      @include float(right);
+      width: flex-grid(3,12);
+      display: inline-block;
+      vertical-align: bottom;
+      @include text-align(right);
+
+      a {
+        display: inline-block;
+
+        &:hover {
+          border-bottom: none;
+        }
+      }
+    }
   }
 }

cms/templates/widgets/footer.html

@@ -30,6 +30,11 @@
         % endif
       </ol>
     </nav>
+    <div class="powered-by">
+      <a href="http://openedx.org" title="${_("Powered by Open edX")}">
+        <img alt="${_("Powered by Open edX")}" src="https://files.edx.org/openedx-logos/edx-openedx-logo-tag.png" width="150" height="50">
+      </a>
+    </div>
   </footer>
 </div>