diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..e371e86
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,17 @@
+SASS=`which sass`
+
+CSS_TARGETS=popover.css
+
+all: $(CSS_TARGETS)
+
+clean:
+	@rm $(CSS_TARGETS)
+
+%.css: lib/%.sass
+	@if test -z $(SASS) ; \
+	then \
+		echo "Couldn't find sass compiler. (http://sass-lang.com/)" ; \
+		exit 1 ; \
+	fi
+	@$(SASS) lib/$(*F).sass $(*F).css
+