fix

Author: lukasoppermann

package.json

@@ -16,7 +16,7 @@
     "./functional/size.css": "./dist/css/functional/size/size.css",
     "./functional/size-fine.css": "./dist/css/functional/size/size-fine.css",
     "./functional/size-coarse.css": "./dist/css/functional/size/size-coarse.css",
-    "./functional/viewports.css": "./dist/css/functional/size/viewports.css",
+    "./functional/viewport.css": "./dist/css/functional/size/viewport.css",
     "./functional/typography.css": "./dist/css/functional/typography/typography.css",
     "./base/size.css": "./dist/css/base/size/size.css",
     "./base/typography.css": "./dist/css/base/typography/typography.css",