sign style fix 7

resources/views/wap/signV3.blade.php

@@ -161,6 +161,7 @@
             max-height: 140px;
             min-height: 100px;
             width: 100px;
+            max-width: 100px;
             box-shadow: 0 0 0.16rem rgba(0, 0, 0, 0.1);
             border-radius: 2px;
             height: 100%;