diff --git a/src/assets/index.css b/src/assets/index.css
index 69d6491f..22db1796 100644
--- a/src/assets/index.css
+++ b/src/assets/index.css
@@ -235,9 +235,6 @@ html.dark ::-webkit-scrollbar-thumb {
   padding-right: 0;
   padding-left: 8px;
 }
-/* [class^="toastui-editor-"] .toastui-editor-md-container .toastui-editor-md-splitter {
-  background-color: #d0d5dd;
-} */
 [class^="toastui-editor-"] .toastui-editor-md-container .ProseMirror {
   height: 100%;
 }
@@ -288,3 +285,12 @@ html.dark ::-webkit-scrollbar-thumb {
 .toastui-editor-dark .toastui-editor-md-container {
   background-color: #4e5762 !important;
 }
+html.dark .slate-mention {
+  background: #333;
+}
+html.dark .slate-Combobox {
+  background: #333 !important;
+}
+html.dark .slate-Combobox li:hover {
+  background: #333 !important;
+}
diff --git a/src/common/component/Send/UploadFileList/index.tsx b/src/common/component/Send/UploadFileList/index.tsx
index fb9d8ed0..df9e4c0f 100644
--- a/src/common/component/Send/UploadFileList/index.tsx
+++ b/src/common/component/Send/UploadFileList/index.tsx
@@ -53,7 +53,7 @@ export default function UploadFileList({
         />
       )}
 
-      <ul className="w-full overflow-auto flex justify-start p-4 pt-6 bg-gray-200 dark:bg-gray-800 rounded-t-lg">
+      <ul className="w-full overflow-auto flex gap-2 justify-start p-4 pt-6 bg-gray-200 dark:bg-gray-800 rounded-t-lg">
         {stageFiles.map(({ name, url, size, type }, idx: number) => {
           return (
             <li className="group relative flex flex-col bg-gray-100 dark:bg-gray-700 rounded p-2" key={url}>
diff --git a/src/common/hook/useUploadFile.ts b/src/common/hook/useUploadFile.ts
index bb120bec..6d53e560 100644
--- a/src/common/hook/useUploadFile.ts
+++ b/src/common/hook/useUploadFile.ts
@@ -34,8 +34,6 @@ const useUploadFile = (props?: IProps) => {
     formData.append("file_id", file_id);
     formData.append("chunk_data", chunk);
     formData.append("chunk_is_last", `${is_last}`);
-    // old code
-    // formData.append("chunk_is_last", is_last);
     return uploadFileFn(formData);
   };