Some fixes (whoops used current_user instead of user)

app/assets/stylesheets/scss/user.scss

@@ -36,6 +36,10 @@
   background-color: darken($navbar-inverse-bg, 10%);
 }
 
+#profile--header.profile--no-header {
+  position: absolute;
+}
+
 .profile--panel .panel-heading {
   color: $brand-primary;
   border-bottom: 2px solid $brand-primary;
@@ -99,7 +103,7 @@ $colours: danger $brand-danger,
   text-decoration: line-through !important;
 }
 
-.profile--panel-push-inner {
+.profile--panel-push-inner:not(.profile--no-header) {
   display: block;
   height: 60px;
 }
@@ -111,7 +115,7 @@ $colours: danger $brand-danger,
 }
 
 @media(min-width: 767px) {
-  .container.headerable {
+  .container.headerable:not(.profile--no-header) {
     padding-top: 0;
     margin-top: -30px;
   }

app/views/user/show.html.haml

@@ -1,12 +1,11 @@
-#profile--header.hidden-xs
-  %img.profile--header-img{src: current_user.profile_header.url(:web)}
-#profile--panel-push-n.hidden-xs
-.container.j2-page.headerable
+#profile--header.hidden-xs{class: unless @user.profile_header.exists? then "profile--no-header" end}
+  %img.profile--header-img{src: @user.profile_header.url(:web)}
+.container.j2-page.headerable{class: unless @user.profile_header.exists? then "profile--no-header" end}
   .col-md-3.col-xs-12.col-sm-4.j2-col-reset
     = render 'user/profile_info'
     .hidden-xs= render 'shared/links'
   .col-md-9.col-xs-12.col-sm-8.j2-col-reset
-    .profile--panel-push-inner.hidden-xs
+    .profile--panel-push-inner.hidden-xs{class: unless @user.profile_header.exists? then "profile--no-header" end}
     = render 'shared/questionbox'
     - unless @user.banned?
       #answers