diff --git a/assets/css/style.scss b/assets/css/style.scss
new file mode 100644
index 0000000..ac1915e
--- /dev/null
+++ b/assets/css/style.scss
@@ -0,0 +1,9 @@
+---
+---
+
+@import "{{ site.theme }}";
+
+// Hide “This site is open source. Improve this page.”
+.footer {
+  display: none;
+}