[common] refactoring

apps/common/main/resources/less/toolbar.less

@@ -280,7 +280,8 @@
     }
 }
 
-.style-off-tabs .toolbar {
+.style-off-tabs {
+    .toolbar {
         @underscore_height: 2px;
 
         .tabs, .extra {
@@ -316,6 +317,11 @@
                     }
                 }
 
+                &:hover:not(.active) {
+                    background-color: rgba(0, 0, 0, .05);
+                    //background-color: @secondary;
+                }
+
                 > a {
                     color: @gray-deep;
                 }
@@ -356,6 +362,9 @@
         }
     }
 
+    }
+}
+
 .toolbar-fullview-panel {
     position: absolute;
     bottom: 0;