Fixed tree view with multi line labels
diff --git a/dev/scss/header/header.scss b/dev/scss/header/header.scss
index 8b4e0a5..c9d2c3d 100644
--- a/dev/scss/header/header.scss
+++ b/dev/scss/header/header.scss
@@ -69,7 +69,7 @@
       top: 0;
       right: 0;
       margin-right: 0;
-      width: 22px;
+      width: ($standard-margin / 2);
       background-color: $dark-green;
       text-align: center;
       height: 100%;