I have the following site set up here on Heroku - http://www.peerinstruction.net/users/sign_up the issue is that I have updated the css yet it is not being actively reflected on the site, it just shows a textbox, with some edited/custom fonts. I have attached the css file in the following gist - https://gist.github.com/f74b626c54ecbb60bbde

The signup page controller:

!!! Strict
%html
  %head
    %title= yield(:title) || "Untitled"
    = stylesheet_link_tag 'application', 'web-app-theme/base', 'web-app-theme/themes/activo/style', 'web-app-theme/override'
    = javascript_include_tag :defaults
    = csrf_meta_tag
    = yield(:head)
  %body
    #container
      #header
        %h1
          %a{:href => "/"} Peer Instruction Network
        #user-navigation
          %ul.wat-cf
            %li
              .content.login
                .flash
                  - flash.each do |type, message|
                    %div{ :class => "message #{type}" }
                      %p= message
                = form_for(resource, :as => resource_name, :url => session_path(resource_name), :html => { :class => "form login" }) do |f|
                  .group.wat-cf
                    .left= f.label :email, :class => "label right"
                    .right= f.text_field :email, :class => "text_field"
                  .group.wat-cf
                    .left= f.label :password, :class => "label right"
                    .right= f.password_field :password, :class => "text_field"
                  .group.wat-cf
                    .right
                      %button.button{ :type => "submit" }
                        Login
              /= link_to "Sign In", destroy_user_session_path
      #box
        = yield

The signup pages haml file:

%h2
.block
  .content.login
    .flash
      - flash.each do |type, message|
        %div{ :class => "message #{type}" }
          %p= message
      = form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f|
        = devise_error_messages!
        %div
          = f.label :firstname
          %br/
          = f.text_field :firstname
        %div
          = f.label :middlename
          %br/
          = f.text_field :middlename
        %div
          = f.label :lastname
          %br/
          = f.text_field :lastname
        %div
          = f.label :email
          %br/
          = f.email_field :email
        %div
          = f.label :password
          %br/
          = f.password_field :password
        %div
          = f.label :academic
          %br/
          = f.text_field :academic
        %div= f.submit "Continue"
      = render :partial => "devise/shared/links"

I used web-app-theme to create an activo theme and then modify it.