[FIX] Admin menu css.

Author: Seiger

manager/media/style/default/css/mainmenu.css

@@ -30,8 +30,11 @@
 }
 #mainMenu > .container {
     display: table;
-    width: 100%;
     border-collapse: collapse;
+    padding-left: 1.25rem;
+    padding-right: 1.25rem;
+    width: 100%;
+    min-width: 100%;
 }
 #mainMenu > .container > .row {
     display: table-row;