diff --git a/assets/html/h264.html b/assets/html/h264.html
index 46c234f9..191f47a5 100644
--- a/assets/html/h264.html
+++ b/assets/html/h264.html
@@ -10,15 +10,26 @@
     html{
         margin:0 0;
         padding: 0 0;
+        overflow: hidden; /* 防止滚动条出现 */
     }
     body{
         margin:0 0;
         padding: 0 0;
+        background-color: antiquewhite;
+        overflow: hidden; /* 防止滚动条出现 */
+    }
+    #player {
+      position: fixed;
+      top: 0;
+      left: 0;
+      width: 100vw;
+      height: 100vh;
+      object-fit: fill; /* 强制拉伸视频以填充整个视口 */
     }
-
 </style>
 <body>
-<video  autoplay muted style="width: 100vw;height: 100vh;" poster="images/loader-thumb.jpg" id="player">
+<video autoplay muted poster="images/loader-thumb.jpg"
+       id="player">
 </video>
 <script>
     (function (global, factory) {
@@ -2656,7 +2667,7 @@
                 node: 'player',
                 mode: 'video',
                 flushingTime: 1000,
-                fps: 22,
+                fps:22,
                 debug: true,
             });
             console.log("JMuxer initialized.");
diff --git a/pubspec.yaml b/pubspec.yaml
index e844e3e2..7a82577d 100755
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -299,7 +299,6 @@ flutter:
     - images/lockType/
     - assets/
     - assets/html/h264.html
-    - assets/demo.h264
     - assets/talk.h264
     - lan/
   # An image asset can refer to one or more resolution-specific "variants", see
