app/views/devise/registrations/new.html.erb
<div>
<h2>Step 1 - Create an account</h2>
<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f| %>
<%= devise_error_messages! %>
<div><%= f.label :email %><br />
<%= f.email_field :email, :autofocus => true %></div>
<span>^ Careful! Recurly will send emails there! ^</span>
<div><%= f.label :password %><br />
<%= f.password_field :password %></div>
<div><%= f.label :password_confirmation %><br />
<%= f.password_field :password_confirmation %></div>
<div><%= f.submit "Sign up", class: 'btn btn-lg btn-success', style: 'margin-top: 1em' %></div>
</div>
<% end %>
</div>
</div>