diff --git a/css/mobile.css b/css/mobile.css
index e57ce9e7d..ce4f3032e 100644
--- a/css/mobile.css
+++ b/css/mobile.css
@@ -114,6 +114,13 @@
     display: block;
     float: none;
     margin: 0 auto;
+    width: 280px;
+    height: 280px;
+  }
+
+  .panel qrcode canvas {
+    width: 270px;
+    height: 270px;
   }
 }