gistfile1.erb

<div id="wrapform" class="group">
  
  <div id="form" class="container group">
    
    <div id="phone" class="col_12">
  
      <% form_for(@contact_method, :url => contact_methods_path) do |f| %>

        <%= errors_for @contact_method, :username_or_number %>
        <%= label_tag :mobile_phone_number %><br>
  
        <%= text_field_tag :mobile_phone_number, nil, :id => "npa", :maxlength => "3", :size => "3" %> - 
        <%= text_field_tag :mobile_phone_number, nil, :id => "nxx", :maxlength => "3", :size => "3" %> - 
        <%= text_field_tag :mobile_phone_number, nil, :id => "xxxx", :maxlength => "4", :size => "4" %>
  
        <%= errors_for @area, :area %>
        
        <ul>
          <li>
            <%= check_box_tag(:miami) %>
            <%= label_tag(:miami, "Miami") %>
          </li>
          <li>
            <%= check_box_tag(:fort_lauderdale) %>
            <%= label_tag(:miami, "Fort Lauderdale") %>
          </li>
          <li>
            <%= check_box_tag(:west_palm_beach) %>
            <%= label_tag(:miami, "West Palm Beach") %>
          </li>
        </ul>

        <%= f.submit 'Subscribe' %>

      <% end %>
      
    </div>

  </div>

</div>