diff --git a/src/openforms/scss/admin/_app_overrides.scss b/src/openforms/scss/admin/_app_overrides.scss
index 404386236c..db382edb88 100644
--- a/src/openforms/scss/admin/_app_overrides.scss
+++ b/src/openforms/scss/admin/_app_overrides.scss
@@ -69,12 +69,9 @@ $djai-padding--tablet: 30px;
 .submit-row {
   position: sticky;
   bottom: 0px;
-  /* the toolbar in the text editor has z-index: 1; */
-  z-index: 2;
 
   &.submit-row-extended {
     position: relative;
-    z-index: 3;
     margin-top: -24px;
     border-top: 0;
     padding-top: 0;
diff --git a/src/openforms/scss/vendor/_react-select.scss b/src/openforms/scss/vendor/_react-select.scss
index 8cd2a51387..aa57e07768 100644
--- a/src/openforms/scss/vendor/_react-select.scss
+++ b/src/openforms/scss/vendor/_react-select.scss
@@ -25,8 +25,4 @@
     100%,
     var(--of-admin-select-max-inline-size)
   );
-
-  .admin-react-select__menu {
-    z-index: 10;
-  }
 }
diff --git a/src/openforms/scss/vendor/_tinymce.scss b/src/openforms/scss/vendor/_tinymce.scss
index 7d46d746f1..62dd10fe0a 100644
--- a/src/openforms/scss/vendor/_tinymce.scss
+++ b/src/openforms/scss/vendor/_tinymce.scss
@@ -1,6 +1,8 @@
 @import '../vars';
 
 .tox.tox-tinymce {
+  z-index: 0;
+
   @at-root .form-row .errors > & {
     border-color: $color-error;
   }