diff --git a/zh-cn/application-dev/ui/ui-js-components-canvasrenderingcontext2d.md b/zh-cn/application-dev/ui/ui-js-components-canvasrenderingcontext2d.md
index 99d794a82fa7e05b7b047dd2625cd77bfccdbd77..a8f930fe603965261612d886b8370df8aa75d2aa 100644
--- a/zh-cn/application-dev/ui/ui-js-components-canvasrenderingcontext2d.md
+++ b/zh-cn/application-dev/ui/ui-js-components-canvasrenderingcontext2d.md
@@ -596,7 +596,6 @@ export default {
 /* xxx.css */
 .container{
   width: 100%;
-  height: 100%;
   flex-direction: column;
   background-color: #F1F3F5;
   align-items: center;