--- a/client/src/components/map/Zoom.vue	Thu Nov 22 08:57:38 2018 +0100
+++ b/client/src/components/map/Zoom.vue	Thu Nov 22 09:50:13 2018 +0100
@@ -1,6 +1,12 @@
 <template>
-    <div class="d-flex buttoncontainer shadow-xs mb-3 position-absolute" :style="showSplitscreen ? 'margin-bottom: 51vh !important' : ''">
-        <button class="zoomButton border-0 bg-white rounded-left ui-element border-right" @click="zoomIn">
+    <div
+        class="d-flex buttoncontainer shadow-xs mb-3 position-absolute"
+        :style="showSplitscreen ? 'margin-bottom: 51vh !important' : ''"
+    >
+        <button
+            class="zoomButton border-0 bg-white rounded-left ui-element border-right"
+            @click="zoomIn"
+        >
             <i class="fa fa-plus"></i>
         </button>
         <button class="zoomButton border-0 bg-white rounded-right ui-element" @click="zoomOut">
@@ -23,6 +29,19 @@
   color: #666
 </style>
 <script>
+/* This is Free Software under GNU Affero General Public License v >= 3.0
+ * without warranty, see README.md and license for details.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * License-Filename: LICENSES/AGPL-3.0.txt
+ *
+ * Copyright (C) 2018 by via donau 
+ *   – Österreichische Wasserstraßen-Gesellschaft mbH
+ * Software engineering by Intevation GmbH
+ *
+ * Author(s):
+ * Thomas Junk <thomas.junk@intevation.de>
+ */
 import { mapState } from "vuex";
 
 export default {