diff --git a/public/react/src/App.css b/public/react/src/App.css
index 932132832..7b0455bea 100644
--- a/public/react/src/App.css
+++ b/public/react/src/App.css
@@ -54,5 +54,8 @@ html, body {
 /* md多空格 */
 .markdown-body p {
   white-space: pre-wrap;
-  margin-bottom: 0px !important;
+}
+/* resize */
+.editormd .CodeMirror {
+  border-right: none !important;
 }
\ No newline at end of file