Minor fixes

wp-content/themes/gf2013/sass/app.scss

@@ -160,8 +160,7 @@ body,html {
 /* Navigation sidebar */
 #nav-wrapper {
     width: 300px;
-    height: 100%;
-    max-height: 806px;
+    height: 806px;
     background-color: $grey;
     @include border-radius(2px);
     text-align: center;

wp-content/themes/gf2013/stylesheets/app.css

@@ -4791,8 +4791,7 @@ html blockquote p {
 /* Navigation sidebar */
 #nav-wrapper {
   width: 300px;
-  height: 100%;
-  max-height: 806px;
+  height: 806px;
   background-color: #2d2b29;
   -webkit-border-radius: 2px;
   -moz-border-radius: 2px;