Update templates/index.html

templates/index.html

@@ -156,13 +156,9 @@
           cursor: pointer;
         }
         #additional-info {
-          display: block;
           height: 0px;
           overflow: hidden;
-          transition: height 0.3s ease;
-        }
-        #additional-info.expanded {
-          height: auto; 
+          transition: height 0.5s ease-in-out;
         }