analytics/lib/plausible_web/templates/site/new.html.eex

<%= form_for @changeset, "/sites", [class: "max-w-md w-full mx-auto bg-white shadow-lg rounded px-8 pt-6 pb-8 mb-4 mt-8"], fn f -> %>
  <h2 class="text-xl font-bold">Your website details</h2>
  <div class="my-6">
    <%= label f, :domain, class: "block text-gray-700 text-sm font-bold" %>
    <p class="text-gray-600 text-xs mt-1 mb-2">Just the naked domain without <code>www</code> or <code>https://</code></p>
    <%= text_input f, :domain, class: "transition bg-gray-200 appearance-none border border-transparent rounded w-full p-2 text-gray-700 leading-normal appearance-none focus:outline-none focus:bg-white focus:border-gray-400", placeholder: "example.com" %>
    <%= error_tag f, :domain %>
  </div>
  <div class="my-6">
    <%= label f, :timezone, "Reporting Timezone", class: "block text-gray-700 text-sm font-bold" %>
    <p class="text-gray-600 text-xs mt-1 mb-2">To make sure we agree on what 'today' means</p>

    <div class="inline-block relative w-full">
      <%= select f, :timezone, Plausible.Timezones.options(), id: "tz-select", selected: "Etc/Greenwich", class: "block appearance-none w-full bg-gray-200 text-gray-700 cursor-pointer hover:border-gray-500 p-2 pr-8 rounded leading-normal focus:outline-none" %>
      <div class="pointer-events-none absolute top-0 right-0 flex items-center px-2 text-red">
        <svg class="fill-current h-4 w-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"><path d="M9.293 12.95l.707.707L15.657 8l-1.414-1.414L10 10.828 5.757 6.586 4.343 8z"/></svg>
      </div>
    </div>
  </div>
  <script>
    var offset = (new Date()).getTimezoneOffset()
    var option = document.querySelector('#tz-select option[offset="' + offset + '"]')
    if (option) { option.selected = "selected"}
  </script>

  <%= submit "Add snippet →", class: "button mt-4 w-full" %>
<% end %>