anchor.diff:    </p>
     <p>
       <%= f.label :enquiry, 'Your enquiry' %> <span class="required">*</span><br>
  -    <%= f.text_area :enquiry, rows: 6 %>
  +    <%= f.text_area :enquiry, rows: 6, required: true %>
     </p>
     <p>
       <%= f.label :call_back, 'Please call me back' %><br>
  
positive.code:   </p>
    <p>
      <%= f.label :telephone %> <span class="required">*</span><br>
      <%= f.text_field :telephone %>
    </p>
    <p>
      <%= f.label :email %> <span class="required">*</span><br>
      <%= f.text_field :email %>
    </p>
    <p>
      <%= f.label :fax %><br>
  
negative.code:   </span>
    <p>
      <%= f.label :name %> <span class="required">*</span><br>
      <%= f.text_field :name, required: true %>
    </p>
    <p>
      <%= f.label :organisation %><br>
  