Sprite maps improved with cache

1 files changed, 3 insertions, 2 deletions

diff --git a/README.rst b/README.rst
index 7fd1fd6..380aba1 100644
--- a/README.rst
+++ b/README.rst
@@ -171,9 +171,10 @@ Examples
 		background: $icons;
 	}
 	@each $icon in sprites($icons) {
+        	$icon_file: sprite-file($icons, $icon);
 		div .$icon {
-			width: image-width(sprite-file($icons, $icon));
-			height: image-height(sprite-file($icons, $icon));
+			width: image-width($icon_file);
+			height: image-height($icon_file);
 			background-position: sprite-position($icons, $icon);
 		}
 	}