basic styling, some metadata

_includes/layouts/page.njk

@@ -2,6 +2,12 @@
 layout: base.njk
 ---
 
-<h1>{{ title }}</h1>
+{% if hero %}
+  <img id="hero" src="{{ hero.src }}" alt="{{ hero.alt }}">
+{% endif %}
 
-{{ content | safe }}
+<div id="content">
+  <h1>{{ title }}</h1>
+
+  {{ content | safe }}
+</div>