diff --git a/_includes/publications.markdown b/_includes/publications.markdown
index e507ac1..2af1e8c 100644
--- a/_includes/publications.markdown
+++ b/_includes/publications.markdown
@@ -1,2 +1,2 @@
-1. J. Dobleault, G.J., P. Markowich, _Stationary solutions of Keller-Segel type crowd motion and herding models: multiplicity and dynamical stability_,
-[preprint](http://hal.archives-ouvertes.fr/index.php?halsid=fp4a1jr4g67u5c06l0rai4ius3&view_this_doc=hal-00821206&version=1)
+1. J. Dobleault, G.J., P. Markowich, _Stationary solutions of Keller-Segel type crowd motion and herding models: multiplicity and dynamical stability_
+([preprint](http://hal.archives-ouvertes.fr/index.php?halsid=fp4a1jr4g67u5c06l0rai4ius3&view_this_doc=hal-00821206&version=1))
diff --git a/_layouts/default.html b/_layouts/default.html
index f65228d..3991147 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -12,12 +12,18 @@
         <link rel="icon" href="/images/favicon.png">
         <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
         <script type="text/x-mathjax-config">
-              MathJax.Hub.Config({
-                  menuSettings: {
-                      zoom: "Click",
-                      zscale: "200%"
-                  }
-                });
+            MathJax.Hub.Config({
+                menuSettings: {
+                    zoom: "Click",
+                    zscale: "200%"
+                },
+                tex2jax: {
+                    inlineMath: [
+                        ['$','$'],
+                        ['\\(','\\)']
+                    ]
+                }
+            });
         </script>
         <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> </script>
         <script src="/javascripts/respond.js"></script>
@@ -61,7 +67,8 @@
                 </div>
 
                 {{ content }}
-                <hr>
+
+                <hr class="clear">
                 <span class="credits left"><a href="http://validator.w3.org/check?uri=http%3A%2F%2Fgjankowiak.github.com{{ page.url | cgi_escape }}">Validate</a> HTML</span>
                 <span class="credits right">Hosted on GitHub Pages &mdash; Theme derived from <a href="http://twitter.com/#!/michigangraham">mattgraham</a> &mdash;
                 Powered by <a href="http://jekyllrb.com/">Jekyll</a>
diff --git a/en.markdown b/en.markdown
index c5fbe3a..a01e174 100644
--- a/en.markdown
+++ b/en.markdown
@@ -51,13 +51,15 @@ to the Keller-Segel model.
 * [French](/files/cv_fr.pdf)
 
 # Contact
+Gaspard Jankowiak  
+jankowiak@ceremade.dauphine.fr  
++33 (0)1 44 05 41 96 (landline)  
++33 (0)6 65 08 54 96 (mobile)
+{: .float-left}
+
 Ceremade &ndash; UMR CNRS 7534  (Office C614)  
 Université Paris Dauphine  
 Place du Maréchal de Lattre de Tassigny  
 75775 PARIS Cedex 16 - France
 {: .float-right}
 
-Gaspard Jankowiak  
-jankowiak@ceremade.dauphine.fr  
-+33 (0)1 44 05 41 96 (landline)  
-+33 (0)6 65 08 54 96 (mobile)  
diff --git a/index.markdown b/index.markdown
index a73c295..2552a58 100644
--- a/index.markdown
+++ b/index.markdown
@@ -50,14 +50,15 @@ ainsi que leurs liens avec certaines inégalités fonctionnelles.
 
 # Contact
 
+Gaspard Jankowiak  
+jankowiak@ceremade.dauphine.fr  
++33 (0)1 44 05 41 96 (fixe)  
++33 (0)6 65 08 54 96 (mobile)
+{: .float-left}
+
 Ceremade &ndash; UMR CNRS 7534  (Bureau C614)  
 Université Paris Dauphine  
 Place du Maréchal de Lattre de Tassigny  
 75775 PARIS Cedex 16
 {: .float-right}
 
-Gaspard Jankowiak  
-jankowiak@ceremade.dauphine.fr  
-+33 (0)1 44 05 41 96 (fixe)  
-+33 (0)6 65 08 54 96 (mobile)
-
diff --git a/stylesheets/styles_light.css b/stylesheets/styles_light.css
index 3240644..76c3096 100644
--- a/stylesheets/styles_light.css
+++ b/stylesheets/styles_light.css
@@ -733,9 +733,18 @@ section .credits.right {
     margin-top: -20px;
   }
 
-  nav {
+  .credits, #foot_image, nav {
     display: none;
   }
+
+  .wrapper {
+      padding-bottom: 0;
+  }
+
+}
+
+.clear {
+    clear:both;
 }
 
 .MathJax_Display {
@@ -759,6 +768,7 @@ nav li {
 .switcher {
     float:left;
     line-height: 2em;
+    margin-right: 1em;
 }
 
 .float-right {