diff --git a/theme.css b/theme.css
index 214c635..e6eab1d 100644
--- a/theme.css
+++ b/theme.css
@@ -1849,3 +1849,7 @@ body
 /* --------------------------------------------------------------------------------------------- */
 
 
+/* 导出预览选项栏的背景色 */
+.protyle-preview__action{
+    background-color: transparent;
+}
\ No newline at end of file