diff --git a/packages/bigscreen/designer/components/preview.vue b/packages/bigscreen/designer/components/preview.vue
index 66a22c9b..7bb490e0 100644
--- a/packages/bigscreen/designer/components/preview.vue
+++ b/packages/bigscreen/designer/components/preview.vue
@@ -6,7 +6,7 @@
           v-if="config.length || config.theme === '1'"
           :src="config.theme === '1' ? 'https://cdn.cunwuyun.cn/dvcp/dv/img/dj-bg.png' : config.backgroundImage[0].url">
       
-      
+