'print version' updates

src/scss/fw.scss

+@import "print";
+
 @import "fw/variables";
 @import "fw/mixins";
 

src/scss/print.scss

@@ -66,4 +66,12 @@
       background-color: #fff !important; // stylelint-disable-line  declaration-no-important
     }
   }
+
+  .header,
+  .page__footer {
+    display: none;
+  }
+  .print-hidden {
+    display: none;
+  }
 }