diff --git a/src/components/BoringLayout.astro b/src/components/BoringLayout.astro
index 29c841c..61bc7fe 100644
--- a/src/components/BoringLayout.astro
+++ b/src/components/BoringLayout.astro
@@ -40,6 +40,7 @@ const { title = '小帕的小窝' } = Astro.props
     height: 100dvh;
     padding-inline: 40px;
     text-align: center;
+    box-sizing: border-box;
 
     & :global(a) {
       color: var(--color-link);