diff --git a/src/pages/demo/chart/demo/components/d2-demo-chart-card.vue b/src/pages/demo/chart/demo/components/d2-demo-chart-card.vue
index e9b26f5d..ff692e71 100644
--- a/src/pages/demo/chart/demo/components/d2-demo-chart-card.vue
+++ b/src/pages/demo/chart/demo/components/d2-demo-chart-card.vue
@@ -1,5 +1,5 @@
 <template>
-  <el-card>
+  <el-card shadow="never">
     <div slot="header">
       <el-button type="primary" size="mini" @click="syncData">
         <d2-icon name="refresh"/>