Fix delete button

sass/utilities/functions.sass

@@ -26,3 +26,11 @@
     @return rgba(#000, 0.7)
   @else
     @return #fff
+
+@function removeUnit($number)
+  @if type-of($number) == 'number' and not unitless($number)
+    @return $number / ($number * 0 + 1);
+  @return $number;
+
+@function roundToEvenNumber($number)
+  @return floor($number / 2) * 2