Fix #242

sass/utilities/mixins.sass

@@ -46,7 +46,9 @@
       @content
 
 =replace($background, $width, $height)
-  background: $background center center no-repeat
+  background-color: $background
+  background-position: center center
+  background-repeat: no-repeat
   background-size: $width $height
   display: block
   height: $height