app/views/devise/passwords/new.html.erb
<% content_for :header do %>
<h1>Forgot your password?</h1>
<p class="lead">We'll email you reset instructions.</p>
<% end %>
<%= simple_form_for(
resource,
as: resource_name,
url: password_path(resource_name),
html: { method: :post }
) do |f| %>
<%= f.error_notification %>
<div class="form-group">
<%= f.input :email,
label: false,
required: true,
autofocus: true,
placeholder: "Email address" %>
</div>
<%= f.button :submit, "Email me" %>
or <%= link_to "cancel", new_session_path(:user) %>.
<% end %>