app/views/constructions/new.html.erb
<div class="text-center">
<h1 class="h3 mb-0 font-weight-bold">Baustelle anlegen</h1>
</div>
<div class="row justify-content-center">
<div class="col-lg-8">
<%= form_with( url: constructions_path, method: :post, local: true) do %>
<%= render partial: "constructions/form", locals: { construction: @construction } %>
<% end %>
</div>
</div>