make css be the last imported item

tslint.json

@@ -8,7 +8,13 @@
         "interface-over-type-literal": false,
         "trailing-comma": false,
         "quotemark": false,
-        "space-before-function-paren": false
+        "space-before-function-paren": false,
+        "ordered-imports": [
+            true,
+            {
+                "import-sources-order": "lowercase-last"
+            }
+        ]
     },
     "rulesDirectory": []
 }