diff --git a/core/core-frontend/src/custom-component/rich-text/DeRichTextView.vue b/core/core-frontend/src/custom-component/rich-text/DeRichTextView.vue
index 1b9fd9f72a..2647c97526 100644
--- a/core/core-frontend/src/custom-component/rich-text/DeRichTextView.vue
+++ b/core/core-frontend/src/custom-component/rich-text/DeRichTextView.vue
@@ -533,7 +533,7 @@ defineExpose({
 .tox {
   border-radius: 4px !important;
   border-bottom: 1px solid #ccc !important;
-  top: 38px !important;
+  z-index: 1000;
 }
 .tox-tbtn {
   height: auto !important;