diff --git a/src/layouts/MarkdownPostLayout.astro b/src/layouts/MarkdownPostLayout.astro
index 39fe2b4..bd3dffa 100644
--- a/src/layouts/MarkdownPostLayout.astro
+++ b/src/layouts/MarkdownPostLayout.astro
@@ -318,6 +318,7 @@ const publishedDate = new Intl.DateTimeFormat(
       "Noto Sans CJK SC",
       "Source Han Sans SC",
       sans-serif;
+    font-size: 1.07rem;
     font-weight: 400;
     line-height: 1.85;
     overflow-wrap: break-word;