clean up Firefox Marketplace wordmark on log-in and walled-consumer pages (bug 794720, bug 794719)

media/css/mkt/header.less

@@ -39,6 +39,19 @@
     }
 }
 
+// TODO: Remove these when we take down walled garden and have desktop designs.
+.login.home #top {
+    margin-left: 0;
+}
+
+@media (max-width: @7col) {
+    .login.home #top {
+        margin: 0 auto;
+        width: 100%;
+        max-width: 100%;
+    }
+}
+
 #search {
     color: #fff;
     display: none;

mkt/home/templates/home/home_walled.html

@@ -1,6 +1,9 @@
 {% extends 'mkt/base.html' %}
 
+{% set bodyclass = 'home login' %}
+
 {% block content %}
+<h1 id="top">{{ _('Firefox Marketplace') }}</h1>
 <section id="walled">
   <div>
     {% include 'home/walled_prose.html' %}