diff --git a/Logo.jpg b/Logo.jpg
new file mode 100644
index 0000000..2676288
Binary files /dev/null and b/Logo.jpg differ
diff --git a/main.css b/main.css
index 235b3db..3c99ffe 100644
--- a/main.css
+++ b/main.css
@@ -1,25 +1,39 @@
+/*
+
+
+
+
+
+*/
+
+/*Tout*/
 html, body{
     height: 100%;
     text-align: center;
     /*font-size: 98%;*/
 }
 
+
+/*Header et son contenu*/
 #header {
     display: flex;
     flex-direction: row;
     padding: 30px;
+    background-color: blanchedalmond;
 }
 
 #logo {
-    background-color: blue;
+    background-image: url("Logo.jpg");
+    background:no-repeat;
 }
 
 #nav {
     background-color: yellow;
 }
 
-
+/*Body et son contenu */
 body {
+    background-color: blanchedalmond;
     display: flex;
     flex-direction: column;
     margin: 0;
@@ -29,16 +43,29 @@ body {
 
 #sidebar {
     background-color: aquamarine;
+    border: 1px solid rgba(0,0,0,.125);
+    border-radius: .25rem;
 }
 
 
 #main-body {
-    background-color: red;
     display: flex;
     flex-direction: row;
     overflow: auto;
+    flex: 1;
+    background-clip: border-box;
 }
 
+#content {
+    background-color: red;
+    text-align: left;
+    width: 100%;
+    height: 100%;
+    border: 1px solid rgba(0,0,0,.125);
+    border-radius: .25rem;
+}
+
+/*Footer et son contenue*/
 footer{
     padding: 25px;
     background: darkslateblue;