diff --git a/cement/cement.css b/cement/cement.css
index b9ddb83..9728b6a 100644
--- a/cement/cement.css
+++ b/cement/cement.css
@@ -446,9 +446,8 @@ blockquote:hover {
 /* 复选框 */
 #write input[type=checkbox] {
     cursor: inherit;
-    height: 100%;
     width: 1rem;
-    margin: 0 -30px;
+    margin: 5px -30px 0 -30px;
     z-index: 1;
 }