diff --git a/doc/opus_in_isobmff.css b/doc/opus_in_isobmff.css
new file mode 100644
index 0000000000000000000000000000000000000000..bffe8f45ae9959bbd9c84f96ec832a9a0ae5e0dc
--- /dev/null
+++ b/doc/opus_in_isobmff.css
@@ -0,0 +1,60 @@
+/* Normal links */
+.normal_link a:link
+{
+ color : yellow;
+}
+.normal_link a:visited
+{
+ color : green;
+}
+
+/* Boxes */
+.pre
+{
+ white-space: pre; /* CSS 2.0 */
+ white-space: pre-wrap; /* CSS 2.1 */
+ white-space: -pre-wrap; /* Opera 4-6 */
+ white-space: -o-pre-wrap; /* Opera 7 */
+ white-space: -moz-pre-wrap; /* Mozilla */
+ white-space: -hp-pre-wrap; /* HP Printers */
+ word-wrap : break-word; /* IE 5+ */
+}
+
+.title_box
+{
+ width : 470px;
+ height : 70px;
+ margin : 2px 50px 2px 2px;
+ padding : 10px;
+ border : 1px solid black;
+ background-color : #666666;
+ white-space : pre;
+ float : left;
+ text-align : center;
+ color : #C0C0C0;
+ font-size : 50pt;
+ font-style : italic;
+}
+
+.subindex_box
+{
+ margin : 5px;
+ padding : 14px 22px;
+ border : 1px solid black;
+ background-color : #778877;
+ float : left;
+ text-align : center;
+ color : #115555;
+ font-size : 32pt;
+}
+
+.frame_box
+{
+ margin : 10px;
+ padding : 10px;
+ border : 0px;
+ background-color : #084040;
+ text-align : left;
+ color : #C0C0C0;
+ font-family : monospace;
+}
diff --git a/doc/opus_in_isobmff.html b/doc/opus_in_isobmff.html
index 91ffae867c495d7484be9613797d7f64eee33ff0..3b551b62b1daf34fb1447d0926d4b77853ed7996 100644
--- a/doc/opus_in_isobmff.html
+++ b/doc/opus_in_isobmff.html
@@ -1,7 +1,7 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
- <link rel="stylesheet" type="text/css" href="../style.css"/>
+ <link rel="stylesheet" type="text/css" href="opus_in_isobmff.css"/>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Encapsulation of Opus in ISO Base Media File Format</title>
</head>