diff --git a/_includes/layouts/index.html b/_includes/layouts/index.html
index 74b9e306613d..29ea4fe2de16 100644
--- a/_includes/layouts/index.html
+++ b/_includes/layouts/index.html
@@ -4,3 +4,10 @@
 ---
 
 <img src="/images/IMG_0040.jpeg" alt="Banner Image">
+
+<style>
+  .banner img {
+    width: 100%;
+    height: auto;
+  }
+</style>