css

@@ -141,13 +141,13 @@
     }
     }
 }
 }
 
 
-.print_qrcode {
+.print-qrcode {
     width: 613px;
     width: 613px;
     height: 860px;
     height: 860px;
     margin: 0 auto;
     margin: 0 auto;
     position: relative;
     position: relative;
 
 
-    .print_content {
+    .print-content {
         width: 180px;
         width: 180px;
         position: absolute;
         position: absolute;
         top: 54px;
         top: 54px;