anchor.diff:              <span class="error-message"><%= @booking_request.errors[:accessibility_requirements].to_sentence %></span>
             <% end %>
             <%= f.check_box :accessibility_requirements %> I have accessibility needs, eg wheelchair access
  +          <span class="form-hint" id="accessibility-hint">We’ll contact you for details of your specific needs</span>
           <% end %>
         </div>
   
         <div class="form-group <%= 'error' if @booking_request.errors.include?(:opt_in) %>">
           <fieldset>
             <legend>
  -            Terms and conditions
  +            <span class="visually-hidden">Terms and conditions</span>
               <% if @booking_request.errors.include?(:opt_in) %>
                 <span class="error-message"><%= @booking_request.errors[:opt_in].to_sentence %></span>
               <% end %>
  
positive.code:       </div>
  
        <div class="form-group <%= 'error' if @booking_request.errors.include?(:email) %>">
          <%= f.label :email, class: 'form-label' do %>
            Email
            <span class="form-hint">We’ll send an email confirming your appointment date</span>
          <% end %>
  
negative.code:       </div>
  
        <div class="form-group <%= 'error' if @booking_request.errors.include?(:last_name) %>">
          <%= f.label :last_name, class: 'form-label-bold' %>
          <% if @booking_request.errors.include?(:last_name) %>
            <span class="error-message"><%= @booking_request.errors[:last_name].to_sentence %></span>
          <% end %>
  