diff --git a/hello.css b/hello.css
index f18f958547e4e363dc9cfd686bce30b9bbb5c426..3f29c5c4eb21ad82677acdf0c10c07b45295b3c4 100644
--- a/hello.css
+++ b/hello.css
@@ -1,15 +1,34 @@
-/* body {
-    background: blue !important;
-} */
+body {
+    background-color: #009EF5;
+    background-image: linear-gradient(#0180F5, #009EF5);
+}
+
+/* inline code */
+code {
+    background-color: #FFE265;
+}
+
+.reveal {
+    color: white;
+}
+
+.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5 {
+    color: white;
+}
 
 .reveal pre {
     width: 1400px;
 }
 .reveal pre code {
+    border-radius: 5px;
     max-height: none;
     padding: 20px;
 }
 
+.hljs {
+    background-color: #272C35;
+}
+
 .reveal section img {
     border: none;
     background: none;
diff --git a/index.md b/index.md
index bfd3b7d01d76cf01d9a7dd1d09186361158ce376..70cd9e566d4850a675615f157a83410c0842e55e 100644
--- a/index.md
+++ b/index.md
@@ -9,7 +9,7 @@ Software Engineer<br />
 <span id="gregoire">![PhotoDeGregoire](./PARIS-150x150.jpg)</span><br />
   <div id="gregoire_company">
     <div id="universcine">
-      ![LogoUniversCine](./universcine_dark.svg)
+      ![LogoUniversCine](./universcine_light.svg)
     </div>
     <div id="universcine">➡ </div>
     <div id="manomano">