app/views/devise/passwords/edit.html.erb
<div class="content background-grey">
<div class="row">
<%= form_for(resource, as: resource_name, url: password_path(resource_name), html: { class: 'panel', method: :put }) do |f| %>
<%= devise_error_messages! %>
<%= f.hidden_field :reset_password_token %>
<fieldset>
<div class="panel-body">
<h2>Change your password</h2>
<br/>
<%= f.label :password, "New password" %>
<%= f.password_field :password, autofocus: true, autocomplete: "new-password" %>
<%= f.label :password_confirmation, "Confirm new password" %>
<%= f.password_field :password_confirmation, autocomplete: "off" %>
<%= f.button 'Change my password', type: 'submit', class: 'btn btn-primary btn-login' %>
</div>
</fieldset>
<% end %>
</div>
</div>