diff --git a/static/css/blog/post.css b/static/css/blog/post.css
index b23431a..7674734 100644
--- a/static/css/blog/post.css
+++ b/static/css/blog/post.css
@@ -208,3 +208,9 @@ table.hljs-ln {
 pre:has(code.language-mermaid) {
   text-align: center;
 }
+
+@media only screen and (max-width: 720px) {
+  body {
+    margin: 20px;
+  }
+}