mark this site mobile friendly, allow pages to override as needed..

layout/base.j2

@@ -44,7 +44,8 @@
 	<meta name="author" content="{{ resource.meta.author }}">
 
 	<!--  Mobile viewport optimized: j.mp/bplateviewport -->
-	<meta name="viewport" content="{{ resource.meta.viewport }}">
+
+	<meta name="viewport" content="{{ resource.meta.viewport or site.context.viewport }}">
 
 	{% block css %}
 	<link rel="stylesheet" href="{{ media_url('css/w3.css') }}">

site.yaml

@@ -11,6 +11,7 @@ plugins:
     - hyde.ext.plugins.text.TextlinksPlugin
 context:
     data:
+        viewport: width=device-width, initial-scale=1
         tweet_via: encthenet
         title: encthenet ramblings
 jinja2: