app/views/devise/passwords/new.html.erb
<div class="page-header">
<h1>パスワードのリセット</h1>
</div>
<%= form_for(resource,
as: resource_name,
url: password_path(resource_name),
html: { method: :post , class: 'form-horizontal' }
) do |f| %>
<%= render partial: 'shared/form_error', locals: { object: resource } %>
<div class="form-group">
<%= f.label :email, class: 'control-label col-sm-2' %>
<div class="col-sm-4">
<%= f.email_field :email,
autofocus: true,
class: 'form-control' %>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<%= f.submit 'リセット', class: 'btn btn-warning btn-sm' %>
</div>
</div>
<% end %>
<br>
<%= render "devise/shared/links" %>