app/views/users/passwords/edit.html.erb
<div class="container">
<h2>Change your password</h2>
<%= simple_form_for(resource, as: resource_name, url: password_path(resource_name), html: { method: :put, role: "form", class: 'form-horizontal' }) do |f| %>
<%= f.error_notification %>
<%= f.input :reset_password_token, as: :hidden %>
<%= f.full_error :reset_password_token %>
<div class="form-group">
<%= f.label :password, 'New Password', class: 'col-sm-3 control-label' %>
<div class="col-sm-9">
<%= f.input_field :password, required: true, class: "form-control" %>
</div>
</div>
<div class="form-group">
<%= f.label :password_confirmation, 'Confirm your new password', class: 'col-sm-3 control-label' %>
<div class="col-sm-9">
<%= f.input_field :password_confirmation, required: true, class: "form-control" %>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-3 col-sm-9">
<%= f.button :submit, "Change my password", class: "btn btn-default" %>
</div>
</div>
<% end %>
</div>
<%= render "users/shared/links" %>