diff --git a/doc/t2h.init b/doc/t2h.init
index c41be2ef37..a01a971b20 100644
--- a/doc/t2h.init
+++ b/doc/t2h.init
@@ -22,7 +22,7 @@ EOT
 my $TEMPLATE_HEADER2 = $ENV{"FFMPEG_HEADER2"} || <<EOT;
   </head>
   <body>
-    <div style="width: 95%; margin: auto">
+    <div class="container">
 EOT
 
 my $TEMPLATE_FOOTER = $ENV{"FFMPEG_FOOTER"} || <<EOT;
diff --git a/doc/t2h.pm b/doc/t2h.pm
index 5efb2da483..e83d564a65 100644
--- a/doc/t2h.pm
+++ b/doc/t2h.pm
@@ -174,7 +174,7 @@ EOT
     <link rel="stylesheet" type="text/css" href="style.min.css">
   </head>
   <body>
-    <div style="width: 95%; margin: auto">
+    <div class="container">
       <h1>
 EOT
 
