minor css adjustments

static/css/dopetrope.css

@@ -2064,7 +2064,8 @@ input, select, textarea {
 
 	#header {
 		position: relative;
-		background: #ffffff;
+		background-image: : url("https://git.wownero.com/wownero/wow-assets/raw/branch/master/WOW-WOW-720x234.png");
+		background-repeat: repeat-x;
 		border-bottom: solid 1px #ccc;
 		padding: 5em 0 4em 0;
 		text-align: center;

static/css/main.css

@@ -307,3 +307,14 @@ p.subheader {
   margin: .5em auto;
   padding-bottom: 1em;
 }
+
+#slim-header {
+  text-align: center;
+}
+
+#slim-header > p {
+  display: block;
+  font-style: italic;
+  margin: 0;
+  padding-bottom: 0;
+}