</head>
<body>
+<div class="header">
+ <h1>The Mesa 3D Graphics Library</h1>
+</div>
+
+<iframe src="contents.html"></iframe>
+<div class="content">
+
<h1>Performance Tips</h1>
<p>
command glEnable(GL_DITHER) will be ignored.
</ol>
-
+</div>
</body>
</html>