diff --git a/WebNews/foucsreport.html b/WebNews/foucsreport.html
index 66ac076..abf9955 100644
--- a/WebNews/foucsreport.html
+++ b/WebNews/foucsreport.html
@@ -113,7 +113,7 @@
             });  
   
             Prostick = document.querySelector('.Prostick');  
-            totalHeight = document.body.scrollHeight - window.innerHeight;  
+            totalHeight = document.documentElement.scrollHeight - window.innerHeight;  
         });  
   
         window.addEventListener('scroll', function () {  
diff --git a/WebNews/index.html b/WebNews/index.html
index fee5577..94c7d05 100644
--- a/WebNews/index.html
+++ b/WebNews/index.html
@@ -78,7 +78,7 @@
             });  
       
             Prostick = document.querySelector('.Prostick');
-            totalHight = document.body.scrollHeight - window.innerHeight; 
+            totalHight = document.documentElement.scrollHeight - window.innerHeight; 
         });  
       
         window.addEventListener('scroll', function () {  
diff --git a/WebNews/newsclass.html b/WebNews/newsclass.html
index aacc848..97f1ec8 100644
--- a/WebNews/newsclass.html
+++ b/WebNews/newsclass.html
@@ -56,7 +56,7 @@
 
             
             Prostick = document.querySelector('.Prostick'); 
-            totalHight = document.body.scrollHeight - window.innerHeight;
+            totalHight = document.documentElement.scrollHeight - window.innerHeight;
         });
         window.addEventListener('scroll', function () {
             let pro = (window.pageYOffset / totalHight) * 100;
diff --git a/WebNews/newsinfo.html b/WebNews/newsinfo.html
index 1856edc..d558eaa 100644
--- a/WebNews/newsinfo.html
+++ b/WebNews/newsinfo.html
@@ -36,7 +36,7 @@
 
             
             Prostick = document.querySelector('.Prostick'); 
-            totalHight = document.body.scrollHeight - window.innerHeight; 
+            totalHight = document.documentElement.scrollHeight - window.innerHeight; 
         });
         window.addEventListener('scroll', function () {
             let pro = (window.pageYOffset / totalHight) * 100;