Added Menu Mixins:

Desktop vertical
Desktop vertical
Tablet/Phone Fullscreen
Toggle Button

mixins/css/_css.scss

@@ -0,0 +1,10 @@
+// CSS Properties
+
+// Reset
+@import "reset";
+
+// Layout
+
+// FX
+@import "fx/transform";
+@import "fx/filters";

mixins/css/_filters.scss

@@ -1,3 +0,0 @@
-@mixin blur($pixel){
-  filter: blur($pixel);
-}