fix center

src/components/WelcomeGameBlock.vue

@@ -16,7 +16,7 @@ const qrOptions = ref<QROptions>({
   margin: 1,
   color: {
     dark: '#303030',
-    light: 'none'
+    light: '#f0f0f0'
   }
 });
 
@@ -50,6 +50,11 @@ const props = withDefaults(defineProps<Props>(), {})
   width: 200px;
 }
 
+.qr-code {
+  margin: 12px 0;
+  box-shadow: 0px 3px 15px rgb(98, 98, 98);
+}
+
 .team-name {
   margin: 10px 0;
   font-size: 20px;