diff --git a/app/src/protyle/wysiwyg/index.ts b/app/src/protyle/wysiwyg/index.ts
index c32b3c0fd..9b21467c4 100644
--- a/app/src/protyle/wysiwyg/index.ts
+++ b/app/src/protyle/wysiwyg/index.ts
@@ -425,7 +425,9 @@ export class WYSIWYG {
                             dragElement.style.height = (dragHeight + (moveEvent.clientY - y)) + "px";
                         }
                     } else {
-                        dragElement.parentElement.parentElement.style.maxWidth = (parseInt(dragElement.style.width) + 10) + "px";
+                        dragElement.parentElement.parentElement.style.width = (parseInt(dragElement.style.width) + 10) + "px";
+                        // 历史兼容
+                        dragElement.parentElement.parentElement.style.maxWidth = "";
                     }
                 };