add main tag

app/views/start_form/show.html.erb

@@ -2,7 +2,7 @@
 <% I18n.with_locale(@template.account.locale) do %>
   <% content_for(:html_description, t('account_name_has_invited_you_to_fill_and_sign_documents_online_effortlessly_with_a_secure_fast_and_user_friendly_digital_document_signing_solution', account_name: @template.account.name)) %>
 <% end %>
-<main class="max-w-md mx-auto px-2 mt-12 mb-4">
+<div class="max-w-md mx-auto px-2 mt-12 mb-4">
   <div class="space-y-6 mx-auto">
     <div class="space-y-6">
       <div class="text-center w-full space-y-6">
@@ -66,4 +66,4 @@
     <%= render 'shared/attribution', link_path: '/start', account: @template.account %>
     <%= render 'start_form/policy', account: @template.account %>
   </div>
-</main>
+</div>