diff --git a/admin_interface/static/admin_interface/foldable-apps/foldable-apps.css b/admin_interface/static/admin_interface/foldable-apps/foldable-apps.css
index 59a3744..ee70bff 100644
--- a/admin_interface/static/admin_interface/foldable-apps/foldable-apps.css
+++ b/admin_interface/static/admin_interface/foldable-apps/foldable-apps.css
@@ -31,7 +31,7 @@
     right: 0;
     z-index: 10;
     width: auto;
-    height: 100%;
+    height: calc(100% - 3px);
     content: "−";
     font-size: 16px;
     font-weight: lighter;