diff --git a/theme/classic.html b/theme/classic.html
index 066d8d4..17740ad 100644
--- a/theme/classic.html
+++ b/theme/classic.html
@@ -21,8 +21,8 @@
     <meta name=viewport content="width=device-width,initial-scale=1">
     <meta name="keywords" content="<!--Keywords-->">
     <meta name="description" content="<!--Description-->">
-    <link rel="icon" href="<!--base_path-->favicon.ico" type="image/x-icon" />
-    <link rel="shortcut icon" href="<!--base_path-->favicon.ico" type="image/x-icon" />
+    <link rel="icon" href="https://cdn.jsdelivr.net/gh/ldxw/CDN@0.003/favicon/64x64/favicon.ico" type="image/x-icon" />
+    <link rel="shortcut icon" href="https://cdn.jsdelivr.net/gh/ldxw/CDN@0.003/favicon/64x64/favicon.ico" type="image/x-icon" />
     <style type="text/css">
         body{font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;font-size:14px;line-height:1em;color:#000;background-color:#f7f7f9;<!--BackgroundStart-->background-repeat:no-repeat;background-size:cover;background-attachment:fixed;background-image:url("<!--BackgroundUrl-->");<!--BackgroundEnd-->}
         a{color:#24292e;cursor:pointer;text-decoration:none}
@@ -895,7 +895,7 @@
                     } else {
                         StartStr='<!--constStr@LastUpload-->'+size_format(newstartsize)+ '<br><!--constStr@ThisTime--><!--constStr@UploadStartAt-->:' +StartTime.toLocaleString()+'<br>' ;
                     }
-                    var chunksize=5*1024*1024; // chunk size, max 60M. 每小块上传大小，最大60M，微软建议10M
+                    var chunksize=15*1024*1024; // chunk size, max 60M. 每小块上传大小，最大60M，微软建议10M
                     if (totalsize>200*1024*1024) chunksize=10*1024*1024;
                     function readblob(start) {
                         var end=start+chunksize;