webshop/app/templates/partials/product-form.html

<form class="product-item copy" action="/checkout" method="POST">
  <input type="hidden" id="page" name="page" value="product">
  <input type="hidden" id="operation" name="operation" value="add">
  <input type="hidden" id="redirect_with_items" name="redirect_with_items" value="true">
  <input type="hidden" id="product_id" name="product_id" value="{{ doc.meta.product_id }}">
  <input type="hidden" id="product_path" name="product_path" value="{{ doc.meta.path }}">
  <input type="hidden" id="price" name="price" value="{{ doc.meta.price }}">
  <input type="hidden" id="quantity" name="quantity" value="1">
  <input type="hidden" name="csrftoken" value="{{ request.scope.csrftoken() }}">
  {% if doc.meta.options %}
  <div class="pb1-7">
    <fieldset>
      {% for k,v in doc.meta.options %}
      {% if v %}
      <div class="x xdr xw{% if loop.index == 1 %} pb1{% endif %}" style="gap: 0.5rem">
	<legend class="fs-small ttu pt0-5 pr0-5 pb0-5 pl0-5 {% if k == 'size' %}bd-brown bgc-dark-brown fgc-green{% elif k == 'style' %}bd-blue bgc-dark-blue fgc-light-blue{% endif %}'">{{ k }}</legend>
	{% for item in v %}
	<div class="fs-small {% if k == 'size' %}ttu {% endif %}pt0-5 pr0-5 pb0-5 pl0-5">
	  <input type="radio" id="{{ item }}" name="{{ k }}" value="{{ item }}" class="input-listen curp" required="required"{% if item == product_form[k] %} checked="checked"{% endif %}>
	  <label for="{{ item }}" class="curp hvc">{{ item }}</label>
	</div>
	{% endfor %}
      </div>
      {% endif %}
      {% endfor %}
    </fieldset>
  </div>
  <noscript>
    <form class="" action="" method="GET">
      <input type="submit" value="check availability" class="btn-submit fs-big btn-product-available mb1-25">
    </form>
  </noscript>
  {% endif %}
  <input type="submit" {% if not is_product_available %}value="sold out" disabled {% else %}value="add to cart"{% endif %}{% if not is_product_selectable %} disabled{% endif %} class="btn-submit fs-big{% if not is_product_available %} btn-product-soldout{% elif not is_product_selectable %} btn-product-unselectable{% else %} btn-product-available{% endif %}">
</form>