diff --git a/sao/src/sao.less b/sao/src/sao.less
index 7a0a8148e1..d796d0cbfa 100644
--- a/sao/src/sao.less
+++ b/sao/src/sao.less
@@ -1050,9 +1050,11 @@ img.icon {
         width: 100%;
 
         input[type='checkbox'] {
-            margin-top: 0;
+            display: block;
+            float: unset;
             margin-left: auto;
             margin-right: auto;
+            margin-top: 0;
         }
 
         > .input-group {