diff --git a/app/javascript/images/background-kosmos.jpg b/app/javascript/images/background-kosmos.jpg
new file mode 100644
index 000000000..6be143274
Binary files /dev/null and b/app/javascript/images/background-kosmos.jpg differ
diff --git a/app/javascript/styles/custom.scss b/app/javascript/styles/custom.scss
new file mode 100644
index 000000000..3377da412
--- /dev/null
+++ b/app/javascript/styles/custom.scss
@@ -0,0 +1,13 @@
+@import 'application';
+
+body {
+  background-color: $ui-base-color;
+  background-image: url('../images/background-kosmos.jpg');
+  background-size: cover;
+  background-attachment: fixed;
+}
+
+.ui {
+  background-color: darken($ui-base-color, 7%);
+  background-image: url('../images/background-kosmos.jpg');
+}