diff --git a/src/pages/posts/[...slug].astro b/src/pages/posts/[...slug].astro
index 8e2260c..ccbce23 100644
--- a/src/pages/posts/[...slug].astro
+++ b/src/pages/posts/[...slug].astro
@@ -68,6 +68,7 @@ const published_at = formatDatetime(data.published_at, 'YYYY 年 M 月 D 日')
     display: flex;
     align-items: center;
     justify-content: space-between;
+    margin-bottom: 20px;
   }
 
   .published-at {
@@ -76,7 +77,6 @@ const published_at = formatDatetime(data.published_at, 'YYYY 年 M 月 D 日')
     gap: 8px;
     color: #6b7280;
     font-size: 14px;
-    margin-bottom: 20px;
   }
 
   .published-at svg {