fixed sidebar set-off

src/styles/_functions.scss

@@ -3,10 +3,16 @@
     @return $remSize;
 }
 
+
 @function strip-unit($number) {
     @if type-of($number) == 'number' and not unitless($number) {
         @return $number / ($number * 0 + 1);
     }
-
     @return $number;
-}
+}
+
+
+@function calculatePx($size) {
+    $pxSize: strip-unit($size) * 16px;
+    @return $pxSize;
+}