Update index.module.less

src/views/activation-code/index.module.less

@@ -206,8 +206,8 @@
 
     .num {
       display: inline-block;
-      width: 16px;
-      height: 16px;
+      width: 15px;
+      height: 15px;
       margin-right: 5px;
       flex-shrink: 0;
     }