diff --git a/docs/assets/example/index.js b/docs/assets/example/index.js
index b285d2479..c2807eb80 100644
--- a/docs/assets/example/index.js
+++ b/docs/assets/example/index.js
@@ -42,7 +42,7 @@ var art = new Artplayer({
],
layers: [
{
- html: `
`,
+ html: `
`,
click: function() {
console.info('You clicked on the custom layer');
},