Improved pkgdown styling

Author: robjhyndman

pkgdown/extra.css

@@ -8,6 +8,15 @@ h2, .h2 {
   font-weight: 700;
 }
 
+h3, .h3 {
+  font-size: 1.2rem;
+  font-weight: 700;
+}
+
 .bg-primary .navbar-nav .show>.nav-link, .bg-primary .navbar-nav .nav-link.active, .bg-primary .navbar-nav .nav-link:hover, .bg-primary .navbar-nav .nav-link:focus {
     color: #ffb81c !important;
 }
+
+.text-muted {
+    color: #ffb81c !important;
+}