diff --git a/src/main/webapp/static/mweixin/material-list.less b/src/main/webapp/static/mweixin/material-list.less
index f4ac8ea8..b4139988 100644
--- a/src/main/webapp/static/mweixin/material-list.less
+++ b/src/main/webapp/static/mweixin/material-list.less
@@ -17,7 +17,7 @@
             padding: 10px 0;
         }
         .body {
-            display: flex; 
+            display: flex;
             flex-direction: column;
         }
         .footer {