Merge branch 'develop' of github.com:xpressengine/plugin-together into develop

Author: woongbin

assets/css/theme.css

@@ -2,8 +2,9 @@
 .header-tfc {
   position: fixed;
   top: 0;
-  left: 0;
-  z-index: 2005;
+  // left: 0;
+  // z-index: 2005;
+  z-index: 180;
   width: 100%;
   height: 56px;
   background-color: #FFF;