add 'get started' link to the bottom of class home pages

Change-Id: I0f4615562efca083e7d1c50bb9e9eaa2cc250ced
diff --git a/tools/droiddoc/templates-sdk/assets/css/default.css b/tools/droiddoc/templates-sdk/assets/css/default.css
index 0cecca6..69418df 100644
--- a/tools/droiddoc/templates-sdk/assets/css/default.css
+++ b/tools/droiddoc/templates-sdk/assets/css/default.css
@@ -528,6 +528,11 @@
     width:262px;
   }
 
+  .paging-links a.start-class-link {
+    width:100%;
+    text-align:right;
+  }
+
   /* list of classes on course landing page */
   ol.class-list {
     list-style:none;
@@ -4902,7 +4907,7 @@
   color:#555;
   text-transform:uppercase;
   border-bottom:none;
-  margin:0;
+  margin:0 0 1em;
   padding:5px 0 0;
 }