diff --git a/areachart/areachart-minimap-brush/app.js b/areachart/areachart-minimap-brush/app.js
index 28cecc5..23ecdde 100644
--- a/areachart/areachart-minimap-brush/app.js
+++ b/areachart/areachart-minimap-brush/app.js
@@ -150,7 +150,7 @@ d3.csv(dataURL, d3.autoType).then((aapl) => {
     // 设置上边界线的纵坐标的读取函数
     .y1(d => y(d.value));
 
-      /**
+  /**
    *
    * 主图
    *