logo as button, see #18

src/main/resources/static/css/style.css

@@ -49,6 +49,20 @@ body {
 	background-repeat: no-repeat;
 }
 
+.logo {
+	width: 128px;
+	height: 55px;
+	background-size: 128px;
+	background-repeat: no-repeat;
+	background-image:  url('../images/logo.png');
+	margin-left: 8px;
+	display: inline-block;
+}
+
+.logo:hover {
+	background-image: url('../images/logo_hover.png');
+}
+
 a {
 	font-family: 'Fira Sans';
 }