updated index.html

index.html

+<style>
+	ul {
+		margin:auto;
+		margin-top: 6rem;
+		padding: 2rem;
+		background-color: #dff0d8;
+		color: #3c763d;
+		border: 0.1rem solid #d6e9c6;
+		border-radius: 0.5rem;
+		width: 20rem;
+	}
+	a {
+		color: #337ab7;
+		padding: 0.5rem;
+	}
+	li {
+		padding: 0.5rem;
+	}
+</style>
 <ul>
 	<li><a href="./docs-output">Dokumentation</a></li>
-	<li><a href="./content">Preview Seite</a></li>
+	<li><a href="./output">Preview Seite</a></li>
 </ul>