app/views/devise/unlocks/new.html.erb
<div class="row">
<div class="col-sm-6 col-sm-offset-3">
<div class="panel" id="login-box">
<div class="panel-body">
<h2><%= t(".resend_instructions") %></h2>
<p class="description"><%= t(".resend_instructions_description") %></p>
<%= render 'layouts/messages' %>
<%= show_error_messages!(resource) %>
<%= form_for resource, url: unlock_path(resource_name), html: { method: :post } do |f| %>
<div class="form-group">
<div class="input-group">
<span class="input-group-addon">
<%= glyph(:envelope) %>
</span>
<%= f.text_field :email, required: false, autofocus: true, placeholder: t("application.login_form.email"), class: "form-control input-lg" %>
</div>
</div>
<div class="form-group">
<div class="row">
<div class="col-xs-12">
<%= f.submit t(".resend_instructions_button"), class: "btn btn-primary btn-lg col-xs-12" %>
</div>
</div>
</div>
<% end %>
</div>
</div>
</div>
</div>