diff --git a/trunk/research/players/index.html b/trunk/research/players/index.html
index 59a01a5b9..fcf4f1e6e 100644
--- a/trunk/research/players/index.html
+++ b/trunk/research/players/index.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
     </style>
     <script type="text/javascript" src="js/jquery-1.10.2.min.js"></script>
diff --git a/trunk/research/players/rtc_player.html b/trunk/research/players/rtc_player.html
index 045bc8731..bd3d668c9 100644
--- a/trunk/research/players/rtc_player.html
+++ b/trunk/research/players/rtc_player.html
@@ -5,7 +5,7 @@
     <meta charset="utf-8">
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
     </style>
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
diff --git a/trunk/research/players/rtc_publisher.html b/trunk/research/players/rtc_publisher.html
index dda6e80f8..3aa9d0e66 100644
--- a/trunk/research/players/rtc_publisher.html
+++ b/trunk/research/players/rtc_publisher.html
@@ -5,7 +5,7 @@
     <meta charset="utf-8">
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
     </style>
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
diff --git a/trunk/research/players/srs_bwt.html b/trunk/research/players/srs_bwt.html
index a35d67e76..961609685 100644
--- a/trunk/research/players/srs_bwt.html
+++ b/trunk/research/players/srs_bwt.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
         #main_modal {
             width: 700px;
diff --git a/trunk/research/players/srs_chat.html b/trunk/research/players/srs_chat.html
index cb6fb14f4..3ce343549 100644
--- a/trunk/research/players/srs_chat.html
+++ b/trunk/research/players/srs_chat.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
         .accordion-group {
             width: 310px;
diff --git a/trunk/research/players/srs_gb28181.html b/trunk/research/players/srs_gb28181.html
index 99f1388e2..2fd4a66e8 100644
--- a/trunk/research/players/srs_gb28181.html
+++ b/trunk/research/players/srs_gb28181.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
         #my_modal_footer {
             margin-top: -20px;
diff --git a/trunk/research/players/srs_player.html b/trunk/research/players/srs_player.html
index 470a1a58d..3881f1e9c 100755
--- a/trunk/research/players/srs_player.html
+++ b/trunk/research/players/srs_player.html
@@ -6,21 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
-        }
-        #my_modal_footer {
-            margin-top: -20px;
-            padding-top: 3px;
-        }
-        #main_modal {
-            margin-top: -60px;
-        }
-        .div_play_time {
-            margin-top: 10px;
-        }
-        #pb_buffer_bg {
-            margin-top: -4px;
-            margin-bottom: 10px;
+            padding-top: 30px;
         }
     </style>
 </head>
diff --git a/trunk/research/players/srs_player_deprecated.html b/trunk/research/players/srs_player_deprecated.html
index 5ee5b0af2..e0e773884 100755
--- a/trunk/research/players/srs_player_deprecated.html
+++ b/trunk/research/players/srs_player_deprecated.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
         #my_modal_footer {
             margin-top: -20px;
diff --git a/trunk/research/players/srs_publisher.html b/trunk/research/players/srs_publisher.html
index 34e106f39..1125c72a2 100644
--- a/trunk/research/players/srs_publisher.html
+++ b/trunk/research/players/srs_publisher.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
         .accordion-group {
             width: 310px;
diff --git a/trunk/research/players/srs_publisher_flash.html b/trunk/research/players/srs_publisher_flash.html
index 461db3d53..10094ec8e 100644
--- a/trunk/research/players/srs_publisher_flash.html
+++ b/trunk/research/players/srs_publisher_flash.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
     </style>
 </head>
diff --git a/trunk/research/players/vlc.html b/trunk/research/players/vlc.html
index afc5932d0..893b280a6 100644
--- a/trunk/research/players/vlc.html
+++ b/trunk/research/players/vlc.html
@@ -6,7 +6,7 @@
     <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
     <style>
         body{
-            padding-top: 55px;
+            padding-top: 30px;
         }
     </style>
 </head>