Fix theme CSS

sass/base_theme.scss

@@ -265,7 +265,8 @@ a:hover {
   background: $color-menu-background;
   padding: 5px;
   color: $color-light;
-  margin-right:5px;
+  margin-right: 10px;
+  float: left;
   border-radius:2px;
 }
 .bar-item:hover {