diff --git a/src/routes/portfolio/+page.svelte b/src/routes/portfolio/+page.svelte
index 2cc74fc..28ef9ea 100644
--- a/src/routes/portfolio/+page.svelte
+++ b/src/routes/portfolio/+page.svelte
@@ -11,7 +11,7 @@
   <meta name="author" content="Youwen Wu" />
 </svelte:head>
 
-<div class="dots-background py-20">
+<div class="md:dots-background py-20">
   <main class="container mx-auto max-w-5xl bg-background rounded-lg py-4">
     <h1 class="font-serif text-5xl font-medium tracking-tight">
       Portfolio