Align event date, logo and h1

_includes/header.html

@@ -5,7 +5,7 @@
                 <img src="/img/hip_logo_opt.svg" class="logo" alt="{{ site.title }}">
             </a>
 
-            <p class="navbar-text" style="margin-top: 12px">{{ site.event.date }}</p>
+            <p class="navbar-text navbar-event-date">{{ site.event.date }}</p>
 
             <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                     data-target=".navbar-collapse">