diff --git a/layouts/posts/single.html b/layouts/posts/single.html
index 99a0942..d3567c3 100644
--- a/layouts/posts/single.html
+++ b/layouts/posts/single.html
@@ -166,7 +166,7 @@
 <!-- ── RELATED POSTS ─────────────────────────────────────────── -->
 {{- $related := .Site.RegularPages.Related . | first 3 -}}
 {{- with $related -}}
-<section class="bg-concrete border-t border-zinc gutter-x py-16 md:py-24">
+<section class="bg-concrete border-t border-zinc gutter-x py-16 md:py-24 spray-bg">
   <div class="max-w-5xl mx-auto">
   <div class="flex items-center gap-5 mb-10">
     <h2 class="font-display text-3xl md:text-4xl text-paper leading-none">