submit-social-housing-lettings-and-sales-data/app/views/case_logs/new.html.erb

<%= form_with model: @case_log, builder: GOVUKDesignSystemFormBuilder::FormBuilder do |f| %>
  <%= f.govuk_number_field :age,
        hint: { text: "More detail" },
        label: { text: "What is the tenant's age?", size: "l"},
        min: 0, max: 150, step: 1, width: 20
  %>
  <%= f.govuk_submit %>
<% end %>