diff --git a/espid2sensor/package.json b/espid2sensor/package.json
index 59b15bf..8099cce 100644
--- a/espid2sensor/package.json
+++ b/espid2sensor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "espid2sensor",
-  "version": "1.6.2",
+  "version": "1.6.3",
   "date": "2026-08-07",
   "type": "module",
   "description": "Kleine Webapp ESP-ID <-> Sensornummer, speichern in MongoDB",
diff --git a/espid2sensor/public/styles.css b/espid2sensor/public/styles.css
index 5afc4fb..b37b4b5 100644
--- a/espid2sensor/public/styles.css
+++ b/espid2sensor/public/styles.css
@@ -1,3 +1,7 @@
+*, *::before, *::after {
+  box-sizing: border-box;
+}
+
 /* Tab Navigation */
 .tabs {
   display: flex;