Make “–” in description optional.

layouts/partials/header.html

@@ -1,7 +1,7 @@
 <div class="header">
   <a class="title" href="{{ .Site.Home.URL }}">{{ .Site.Title }}</a>
   {{- with .Site.Params.subtitle }}
-  <span class="description">– {{ . }}</span>
+  <span class="description">{{ . }}</span>
   {{- end }}
 </div>
 <div class="nav nav-top">

static/assets/nocolor.css

@@ -23,6 +23,11 @@ body>*
     font-family: sans-serif;
 }
 
+.header .description::before
+{
+    content: " – ";
+}
+
 .header .description
 {
     font-size: 75%;