diff --git a/public/react/public/css/edu-all.css b/public/react/public/css/edu-all.css
index 8b7c727a9..fad3568b4 100644
--- a/public/react/public/css/edu-all.css
+++ b/public/react/public/css/edu-all.css
@@ -420,7 +420,7 @@ table.text-file{}
 
 
 /*-------------------------------实训路径-------------------------------*/
-.path-head{width: 100%;height: 300px;background-image: url("/images/educoder/path.jpg");background-color: #081C4B;background-size: 100% 100%;}
+.path-head{width: 100%;height: 300px;background-image: url("/images/educoder/path.png");background-color: #081C4B;background-size: 100% 100%;}
 .pathNavLine{position: absolute;bottom: -8px;width: 100%;}
 .path-nav li{float: left;padding: 0px 30px;height: 42px;}
 .path-nav li a{color:#fff;font-size: 16px;display: block;    height: 40px;}
diff --git a/public/stylesheets/educoder/edu-all.css b/public/stylesheets/educoder/edu-all.css
index 65ff14a59..ec245b196 100644
--- a/public/stylesheets/educoder/edu-all.css
+++ b/public/stylesheets/educoder/edu-all.css
@@ -422,7 +422,7 @@ table.text-file{}
 
 
 /*-------------------------------实训路径-------------------------------*/
-.path-head{width: 100%;height: 300px;background-image: url("/images/educoder/path.jpg");background-color: #081C4B;background-size: 100% 100%;}
+.path-head{width: 100%;height: 300px;background-image: url("/images/educoder/path.png");background-color: #081C4B;background-size: 100% 100%;}
 .pathNavLine{position: absolute;bottom: -8px;width: 100%;}
 .path-nav li{float: left;padding: 0px 30px;height: 42px;}
 .path-nav li a{color:#fff;font-size: 16px;display: block;    height: 40px;}