Converted Observatory class-view element

runtime/observatory/lib/src/elements/css/shared.css

 /* Global styles */
 * {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
 }
 
 body {
   padding-top: 56px;
   color: #333;
@@ skipping 1230 matching lines @@
 }
 nav-refresh-wrapped > li > button[disabled] {
   color: #aaa;
   cursor: wait;
 }
 nav-refresh-wrapped > li {
   float: right;
   margin: 0;
 }
 
-/* object-common */
+/* object-common && class-instances */
 /* TODO(cbernaschina) fix object-common-wrapped to object-common when wrapper
 removed */
 
+class-instances button:hover,
 object-common-wrapped button:hover {
   background-color: transparent;
   border: none;
   text-decoration: underline;
 }
+class-instances button,
 object-common-wrapped button {
   background-color: transparent;
   border: none;
   color: #0489c3;
   padding: 0;
   margin: -8px 4px;
   font-size: 20px;
   text-decoration: none;
 }
 
@@ skipping 468 matching lines @@
 
 vm-connect-target > button.delete-button:hover {
   background: #ff0000;
 }
 
 /* vm-connect */
 
 vm-connect ul {
   list-style-type: none;
 }