diff --git a/buecher.php b/buecher.php
index 5cca194..1e85d80 100644
--- a/buecher.php
+++ b/buecher.php
@@ -13,7 +13,7 @@
        </head>
        <body>
        <header id="header"></header>
-           <div class="containerofbuecher">
+            <div class="hauptcontainer">
                <p id="büchertitel">Bücher</p>
                <?php
                $sql = '';
