diff --git a/bouncing/index.php b/bouncing/index.php
index 55429e8..9ea9531 100644
--- a/bouncing/index.php
+++ b/bouncing/index.php
@@ -5,8 +5,13 @@
     <body>
         <?php include("header.php"); ?>
         <?php include("nav.php"); ?>
-        <h1>Here is stuff</h1>
-        <div id="container"></div>
+        <section>
+            <h2>Bouncing cube</h2>
+            <p>
+                Click on the cube to make it jump !
+            </p>
+            <div id="container"></div>
+        </section>
         <?php include("jsIncludes.php"); ?>
         <script src="js/BouncingMain.js"></script>
     </body>
diff --git a/css/style.css b/css/style.css
new file mode 100644
index 0000000..c76c0fe
--- /dev/null
+++ b/css/style.css
@@ -0,0 +1,44 @@
+body {
+    font-family: Ubuntu;
+    margin-left: auto;
+    margin-right: auto;
+    width: 1024px;
+}
+
+header {
+    text-align: center;
+}
+
+nav {
+    margin-bottom: 25px;
+}
+
+nav ul {
+    list-style-type: None;
+    text-align: center;
+}
+
+nav ul li {
+    display: inline-block;
+    width: 18%;
+}
+
+nav a {
+    color: black;
+    text-decoration: None;
+    font-weight: normal;
+}
+
+nav a:hover {
+    font-weight: bold;
+}
+
+nav a:visited {
+}
+
+section {
+}
+
+#container {
+    position: static;
+}
diff --git a/include/header_functions.php b/include/header_functions.php
index 2fbe8fb..412215b 100644
--- a/include/header_functions.php
+++ b/include/header_functions.php
@@ -4,7 +4,9 @@
     {
         echo "\n\t<head>\n";
         echo "\t\t<title>The begining - " . $title . "</title>\n";
-        echo "\t\t<meta charset='utf-8'>\n";
+        echo "\t\t<meta charset='utf-8' />\n";
+        echo "\t\t<link rel=\"stylesheet\" href=\"http://fonts.googleapis.com/css?family=Ubuntu:400,700,400italic\" />\n";
+        echo "\t\t<link rel=\"stylesheet\" href=\"/css/style.css\" />\n";
         echo "\t</head>\n\n";
     }
 
diff --git a/include/nav.php b/include/nav.php
index 4e98bc1..c75b6b5 100644
--- a/include/nav.php
+++ b/include/nav.php
@@ -1,11 +1,11 @@
 
-            <nav>
-                <ul>
-                    <li><a href="/">Index</a></li>
-                    <li><a href="/bouncing/">Bouncing cube</a></li>
-                    <li><a href="/multisphere/">Multi-sphere</a></li>
-                    <li><a href="/scene/">Prototype</a></li>
-                    <li><a href="/stream/">Streaming simulator</a></li>
-                </ul>
-            </nav>
+        <nav>
+            <ul>
+                <li><a href="/">Index</a></li>
+                <li><a href="/bouncing/">Bouncing cube</a></li>
+                <li><a href="/multisphere/">Multi-sphere</a></li>
+                <li><a href="/scene/">Prototype</a></li>
+                <li><a href="/stream/">Streaming simulator</a></li>
+            </ul>
+        </nav>
 
diff --git a/index.php b/index.php
index 663f7e3..64ac871 100644
--- a/index.php
+++ b/index.php
@@ -6,6 +6,7 @@
         <?php include("header.php"); ?>
         <?php include("nav.php"); ?>
         <section>
+            <h2>Index</h2>
             <ul>
                 <li><a href="/bouncing/">A bouncing cube that jumps when you click on it</a></li>
                 <li>
diff --git a/multisphere/index.php b/multisphere/index.php
index f639182..a053ed2 100644
--- a/multisphere/index.php
+++ b/multisphere/index.php
@@ -5,7 +5,16 @@
     <body>
         <?php include("header.php"); ?>
         <?php include("nav.php"); ?>
-        <div id="container"></div>
+        <section>
+            <h2>Multiresolution sphere</h2>
+            <p>
+                This is the first test of multi-resolution. In fact, it's not
+                really one multi-resolution sphere but many spheres with
+                different resolutions. You can change resolution by clicking on
+                the canvas.
+            </p>
+            <div id="container"></div>
+        </section>
         <?php include("jsIncludes.php"); ?>
         <script src="js/MultiSphere.js"></script>
     </body>
diff --git a/scene/index.php b/scene/index.php
index af381e1..d42665d 100644
--- a/scene/index.php
+++ b/scene/index.php
@@ -5,7 +5,22 @@
     <body>
         <?php include("header.php"); ?>
         <?php include("nav.php"); ?>
-        <div style="border-width:1px; border-style: solid;" id="container"></div>
+        <section>
+            <h2>3D Interface</h2>
+            <p>
+                This is the prototype of a 3D interface. You can move the
+                camera with the arrow keys of your keyboard, and change the
+                angle of the camera by dragging and dropping the scene around
+                it (you can also use your numpad, 2 to look lower, 8 to look
+                higher, 4 to look on the left and 6 to look on the right).
+            </p>
+            <p>
+                Recommended views are displayed with a transparent red screen.
+                By clicking on this screen, your camera will move to the
+                recommended viewpoint.
+            </p>
+            <div style="border-width:1px; border-style: solid;" id="container"></div>
+        </section>
         <?php include("jsIncludes.php"); ?>
         <script src="js/main.js"></script>
     </body>
diff --git a/stream/index.php b/stream/index.php
index b061d7f..95e214d 100644
--- a/stream/index.php
+++ b/stream/index.php
@@ -5,7 +5,22 @@
     <body>
         <?php include("header.php"); ?>
         <?php include("nav.php"); ?>
-        <div style="border-width:1px; border-style: solid;" id="container"></div>
+        <section>
+            <h2>Streaming simulator</h2>
+            <p>
+                In fact, it's not really streaming. The sphere is fully
+                preloaded and then, a mesh is created and vertices and faces
+                are dynamically added to this mesh as time goes by.
+            </p>
+            <p>
+                You can try with a different resolution (between 1 and 25)
+                <form action="" method="GET">
+                    Resolution : <input id="res" name="res" type="number" min="1" max="25" value="5" length=10/>
+                    <input type="submit" value="Go !" />
+                </form>
+            </p>
+            <div style="border-width:1px; border-style: solid;" id="container"></div>
+        </section>
         <?php include("jsIncludes.php"); ?>
         <script src="js/Params.js.php?<?php echo htmlentities($_SERVER['QUERY_STRING']); ?>"></script>
         <script src="js/main.js"></script>
