存在しない tailwind class を指定していたので修正

Author: mucho613

index.md

@@ -1,7 +1,7 @@
 ---
 layout: top
 ---
-<div class="bg-white bg-[url(/img/2025/top/header-background.png)] bg-size-contain bg-no-repeat bg-top bg-center rounded-2xl min-h-full flex-grow flex flex-col">
+<div class="bg-white bg-[url(/img/2025/top/header-background.png)] bg-contain bg-no-repeat bg-top bg-center rounded-2xl min-h-full flex-grow flex flex-col">
   {% include header.html %}
 
   {% include top/sections/hero.html %}