diff --git a/2025/index.html b/2025/index.html
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--- /dev/null
+++ b/2025/index.html
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+<!DOCTYPE html>
+<html lang="de">
+<head>
+  <meta charset="UTF-8">
+  <title>🎄 Bratonien Adventskalender 2025</title>
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+  <!-- globale Styles -->
+  <link rel="stylesheet" href="../shared/style.css">
+
+  <!-- jahrgangsspezifische Styles -->
+  <link rel="stylesheet" href="css/main.css">
+</head>
+<body>
+  <main>
+    <h1>🎄 Bratonien Adventskalender 2025</h1>
+
+    <div class="kalenderbild">
+      <img 
+        src="assets/picture/Basisbild.png" 
+        alt="Adventskalender Hintergrundbild" 
+        width="1920" 
+        height="1800" 
+        loading="lazy">
+    </div>
+
+  </main>
+</body>
+</html>
\ No newline at end of file
