diff --git a/pages/CSS/overflow/overflow-visible-event.uvue b/pages/CSS/overflow/overflow-visible-event.uvue
index d0fbbbabb2ff5f3e521131db58ce99a21e18d375..420ee896f28ba5293cdfa8b8d024726a36cdc024 100644
--- a/pages/CSS/overflow/overflow-visible-event.uvue
+++ b/pages/CSS/overflow/overflow-visible-event.uvue
@@ -101,8 +101,6 @@
         const rect = uni.getElementById('child')?.getBoundingClientRect()
         if (rect != null) {
           let ratio = 1
-          const systemInfo = uni.getSystemInfoSync()
-          const titleBarHeight = systemInfo.screenHeight - systemInfo.windowHeight
 
           if (uni.getSystemInfoSync().platform == 'android'){
             ratio = uni.getSystemInfoSync().devicePixelRatio