commerce-8.x-2.8/modules/checkout/commerce_checkout.libraries.yml

admin:
  version: VERSION
  js:
    js/commerce_checkout.admin.js: {}
  css:
    theme:
      css/commerce_checkout.admin.css: {}
  dependencies:
    - core/jquery
    - core/drupal
    - core/jquery.once

login_pane:
  version: VERSION
  css:
    theme:
      css/commerce_checkout.layout.css: {}

checkout_progress:
  version: VERSION
  css:
    theme:
      css/commerce_checkout.progress.css: {}

form:
  version: VERSION
  css:
    theme:
      css/commerce_checkout.form.css: {}
  dependencies:
    - core/drupal.form