diff --git a/src/aki_prj23_transparenzregister/ui/assets/company_stats.css b/src/aki_prj23_transparenzregister/ui/assets/company_stats.css
index ebdf251..fc6c375 100644
--- a/src/aki_prj23_transparenzregister/ui/assets/company_stats.css
+++ b/src/aki_prj23_transparenzregister/ui/assets/company_stats.css
@@ -1,7 +1,9 @@
 .selection-header {
     float: left;
     background-color: var(--paynes-gray);
+    border: 1px solid;
     width: 100%;
+    box-sizing: border-box;
 }
 
 .selection-header .selection-header-title {
diff --git a/src/aki_prj23_transparenzregister/ui/assets/header.css b/src/aki_prj23_transparenzregister/ui/assets/header.css
index 33b787e..863aaaa 100644
--- a/src/aki_prj23_transparenzregister/ui/assets/header.css
+++ b/src/aki_prj23_transparenzregister/ui/assets/header.css
@@ -10,7 +10,9 @@
 .header-wrapper {
     float:left;
     background-color: var(--raisin-black);
+    border: 1px solid;
     width: 100%;
+    box-sizing: border-box;
     overflow: visible;
     min-height: 77px;
 }
diff --git a/src/aki_prj23_transparenzregister/ui/assets/tabs.css b/src/aki_prj23_transparenzregister/ui/assets/tabs.css
index 37c5011..994d188 100644
--- a/src/aki_prj23_transparenzregister/ui/assets/tabs.css
+++ b/src/aki_prj23_transparenzregister/ui/assets/tabs.css
@@ -3,6 +3,7 @@
     margin-top: 10px;
     border: 1px solid;
     width: 100%;
+    box-sizing: border-box;
 }
 
 .tabs .tab-style {