diff --git a/css/contrastDetails.css b/css/contrastDetails.css
index a65bf3a..007c5f6 100644
--- a/css/contrastDetails.css
+++ b/css/contrastDetails.css
@@ -152,6 +152,9 @@
   font-size: 13px;
   color: #333333;
 }
+.body .item.QRcode .thead {
+  padding: 30px 0;
+}
 .body .item.QRcode .hint {
   width: 115px;
   height: 42px;
diff --git a/css/contrastDetails.less b/css/contrastDetails.less
index 4caaa61..f45e003 100644
--- a/css/contrastDetails.less
+++ b/css/contrastDetails.less
@@ -183,6 +183,9 @@
         }
 
         &.QRcode {
+            .thead {
+                padding: 30px 0;
+            }
             .hint {
                 width: 115px;
                 height: 42px;