erb/devise/registrations/edit.html.erb
<header>
<h2>Edit <%= resource_name.to_s.humanize %></h2>
</header>
<div id="edit-account">
<%= form_for(resource, as: resource_name, url: registration_path(resource_name), html: { method: :put }) do |f| %>
<%= devise_error_messages! %>
<div id="username-email-fields">
<p><%= f.label :username %><br />
<%= f.text_field :username %></p>
<p><%= f.label :email %><br />
<%= f.email_field :email %></p>
</div>
<% if devise_mapping.confirmable? && resource.pending_reconfirmation? %>
<div>Currently waiting confirmation for: <%= resource.unconfirmed_email %></div>
<% end %>
<div id="new-passwrd"><%= f.label :new_password %> <i>(leave blank if you don't want to change it)</i><br />
<%= f.password_field :password, autocomplete: "off" %></div>
<div id="confirm-new-passwrd"><%= f.label :password_confirmation %><br />
<%= f.password_field :password_confirmation, autocomplete: "off" %></div>
<div id="current-passwrd"><%= f.label :current_password %> <i>(Required)</i><br />
<%= f.password_field :current_password, autocomplete: "off" %></div>
<div id="submit-button"><%= f.submit "Update" %></div>
<% end %>
<div id="cancel-account">
<p>Unhappy? <%= button_to "Cancel my account", registration_path(resource_name), data: { confirm: "Are you sure?" }, method: :delete %></p>
</div>
</div>
<div id="back-link">
<%= link_to "Back", :back %>
</div>