diff --git a/index.pug b/index.pug
index c877fd7..6a8cb5d 100644
--- a/index.pug
+++ b/index.pug
@@ -17,7 +17,7 @@ html(lang="en-gb")
                     h2 additional
                     textarea#b(placeholder="Paste additional game data here...")
             .row.middle
-                // todo have some kind of arrow here
+                img.centre(src="merge.png" alt="")
                 button#merge.centre mix!
             .row.bottom
                 .square.centre
diff --git a/merge.png b/merge.png
new file mode 100644
index 0000000..fc00224
Binary files /dev/null and b/merge.png differ
diff --git a/style.css b/style.css
index a439b2a..c67f87c 100644
--- a/style.css
+++ b/style.css
@@ -42,6 +42,11 @@ h2 {
     text-align: center;
 }
 
+img {
+    display: block;
+    height: 22vmin;
+}
+
 textarea {
     background-color: var(--inverse);
     border: 0;