diff --git a/index.html b/index.html
index aa3ad5a..11fa834 100644
--- a/index.html
+++ b/index.html
@@ -57,14 +57,7 @@ <h1>avec le Cloud</h1>
             maintenant : Dév Ruby On Rails + emberjs + sysadmin</aside>
         </section>
 
-        <section data-background="lib/img/heart-cloud.jpg" class="shadow">
-          <p>Pour passer en plein écran<br>
-            <small>et cacher la barre d'adresse</small>
-          </p>
-          <h2 id="toggle-fullscreen">Cliquer ici</h2>
-        </section>
-
-        <section data-background="lib/img/heart-cloud.jpg" class="shadow">
+        <section data-background="#377cbf" class="shadow">
           <h2>Plan</h2>
           <p>Cloud ?</p>
           <p>Notre usage</p>
@@ -76,7 +69,7 @@ <h2>Plan</h2>
           </aside>
         </section>
 
-        <section data-background="lib/img/heart-cloud.jpg" class="shadow">
+        <section data-background="#377cbf" class="shadow">
           <h2>Cloud Computing</h2>
           <h2>IaaS, PaaS, SaaS ?</h2>
           <h5>wtf ?...</h5>
@@ -199,7 +192,7 @@ <h2>Logiciel !</h2>
           </aside>
         </section>
 
-        <section data-background="lib/img/leaf.jpg" class="shadow">
+        <section class="shadow">
           <h2>Autres aspects</h2>
           <ul>
             <p class="fragment">Cloud public/privé</p>
@@ -208,7 +201,6 @@ <h2>Autres aspects</h2>
             <p class="fragment">Flexibilité</p>
             <p class="fragment">ATAWAD</p>
           </ul>
-          <p style="font-size: 0.3em; margin-top: 15%">Photo par mightyboybrian <img src="lib/img/by-nc.svg" style="vertical-align: middle;"> https://www.flickr.com/photos/mightyboybrian/5732782815/</p>
           <aside class="notes">
             Privé : infrastructure dédiée ;
             Public : infrastructure mutualisée ;
@@ -939,19 +931,19 @@ <h2>Résultats</h2>
           </div>
         </section>
 
-        <section data-background="lib/img/stroopwafels.jpg">
+        <section>
           <img src="lib/img/appsignal-graphs.jpg">
         </section>
-        <section data-background="lib/img/stroopwafels.jpg">
+        <section>
           <img src="lib/img/appsignal-errors.jpg">
         </section>
-        <section data-background="lib/img/stroopwafels.jpg">
+        <section>
           <img src="lib/img/appsignal-performance.jpg">
         </section>
-        <section data-background="lib/img/stroopwafels.jpg">
+        <section>
           <img src="lib/img/appsignal-perf-view1.jpg">
         </section>
-        <section data-background="lib/img/stroopwafels.jpg">
+        <section>
           <img src="lib/img/appsignal-perf-view2.jpg">
         </section>
 
@@ -966,7 +958,7 @@ <h2>Résultats</h2>
           </aside>
         </section>
 
-        <section data-background="lib/img/brain-coral-grayed.jpg" data-background-size="100%" class="shadow">
+        <section data-background-size="100%" class="shadow">
           <h2>Que retenir de notre évolution ?</h2>
           <p class="fragment">Maintenance fortement réduite</p>
           <p class="fragment">Meilleure focalisation sur notre métier</p>
@@ -975,7 +967,6 @@ <h2>Que retenir de notre évolution ?</h2>
           <p class="fragment">Plus flexible</p>
           <p class="fragment">Moins de contrôle</p>
           <p class="fragment">Sécurité des données</p>
-          <p style="font-size: 0.3em">Photo par HorsePunchKid <img src="lib/img/by-nc-sa.svg" style="vertical-align: middle;"> https://www.flickr.com/photos/horsepunchkid/4393669704/</p>
           <aside class="notes">
             Sécurité : identité, accès
             Conformité
@@ -984,189 +975,184 @@ <h2>Que retenir de notre évolution ?</h2>
           </aside>
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
-          <p style="padding: 13%"></p>
+        <section class="shadow">
           <h2>Autres acteurs ?</h2>
-          <p style="font-size: 0.3em; margin-top: 27%">Photo par cobalt <img src="lib/img/by-nc-sa.svg" style="vertical-align: middle;"> https://www.flickr.com/photos/cobalt/3300229318/</p>
-          <aside class="notes">le fond d'écran : Petosky stone, fossile trouvable uniquement dans
-            le lac Michigan. Le fossile est appelé "Hexagonaria percarinata". 350 Millions d'années.
-          </aside>
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="http://www.paasify.it/">paasify.it</a></h2>
           <img src="lib/img/other-paasifyit.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <img src="lib/img/other-paasifyit-search.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <img src="lib/img/other-paasifyit-results.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques PaaS</h2>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.heroku.com/">Heroku</a></h2>
           <img src="lib/img/other-heroku.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://scalingo.com/">Scalingo</a></h2>
           <img src="lib/img/other-scalingo.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="http://deliverous.com/">Deliverous</a></h2>
           <img src="lib/img/other-deliverous.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.clever-cloud.com/">Clever Cloud</a></h2>
           <img src="lib/img/other-clevercloud.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.firebase.com/">Firebase</a></h2>
           <img src="lib/img/other-firebase.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h5>Monitoring</h5>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.skylight.io/">Skylight</a></h2>
           <img src="lib/img/other-skylight.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.datadoghq.com/">Datadog</a></h2>
           <img src="lib/img/other-datadog.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Développement</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://c9.io/">Cloud9</a></h2>
           <img src="lib/img/other-cloud9.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.nitrous.io/">Nitrous</a></h2>
           <img src="lib/img/other-nitrousio.jpg"></section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.codebox.io/">Codebox</a></h2>
           <img src="lib/img/other-codebox.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Hébergement</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://pages.github.com/">GitHub Pages</a></h2>
           <img src="lib/img/other-githubpages.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="http://slidedeck.io/">Slidedeck.io</a></h2>
           <img src="lib/img/other-slidedeck.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Hébergement de code</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://github.com/">GitHub</a></h2>
           <img src="lib/img/other-github.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://bitbucket.org/">Bitbucket</a></h2>
           <img src="lib/img/other-bitbucket.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Gestion de projet</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://trello.com/">Trello</a></h2>
           <img src="lib/img/other-trello.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://fr.atlassian.com/software/jira/">Jira</a></h2>
           <img src="lib/img/other-jira.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Envoi d'emails</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://fr.mailjet.com/">Mailjet</a></h2>
           <img src="lib/img/other-mailjet.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Gestion de logs</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.loggly.com/">loggly</a></h2>
           <img src="lib/img/other-loggly.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://papertrailapp.com/">papertrail</a></h2>
           <img src="lib/img/other-papertrail.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Gestion d'erreurs</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.honeybadger.io/">Honeybadger</a></h2>
           <img src="lib/img/other-honeybadger.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://bugsnag.com/">bugsnag</a></h2>
           <img src="lib/img/other-bugsnag.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://raygun.io/">Raygun</a></h2>
           <img src="lib/img/other-raygun.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Recherche temps réel</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.algolia.com/">Algolia</a></h2>
           <img src="lib/img/other-algolia.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Qualité</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://travis-ci.com/">Travis CI</a></h2>
           <img src="lib/img/other-travisci.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://codeclimate.com/">Code Climate</a></h2>
           <img src="lib/img/other-codeclimate.jpg">
         </section>
 
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2>Quelques SaaS</h2>
           <h3>Relation client</h3>
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://fr.zopim.com/">Zopim</a></h2>
           <img src="lib/img/other-zopim.jpg">
         </section>
-        <section data-background="lib/img/macro.jpg" class="shadow">
+        <section class="shadow">
           <h2><a href="https://www.intercom.io/">Intercom</a></h2>
           <img src="lib/img/other-intercom.jpg">
         </section>