modification du css banner et footer en 80% plutot que px en dur

theme/static/css/main.css

@@ -147,7 +147,7 @@ aside, nav, article, figure {
 }
 
 /***** Layout *****/
-.body {clear: both; margin: 0 auto; width: 800px;}
+.body {clear: both; margin: 0 auto; width: 80%;}
 img.right, figure.right {float: right; margin: 0 0 2em 2em;}
 img.left, figure.left {float: left; margin: 0 2em 2em 0;}
 
@@ -157,6 +157,7 @@ img.left, figure.left {float: left; margin: 0 2em 2em 0;}
 #banner {
 	margin: 0 auto;
 	padding: 2.5em 0 0 0;
+    width: 80%;
 }
 
 	/* Banner */
@@ -185,14 +186,14 @@ img.left, figure.left {float: left; margin: 0 2em 2em 0;}
 		margin: 0 auto 2em auto;
 		padding: 0;
 		text-align: center;
-		width: 800px;
+		width: 100%;
 
 		border-radius: 5px;
 		-moz-border-radius: 5px;
 		-webkit-border-radius: 5px;
 	}
 
-	#banner nav ul {list-style: none; margin: 0 auto; width: 800px;}
+	#banner nav ul {list-style: none; margin: 0 auto; width: 100%;}
 	#banner nav li {float: left; display: inline; margin: 0;}
 
 	#banner nav a:link, #banner nav a:visited {