And with our mobile-first approach to eCommerce stores, your online store is optimized for mobile commerce. OpenCart is really an open-source content management system used to create eCommerce websites. In this article at TemplateToaster, you can find many OpenCart themes that appear with features like a gallery, sliders, payment integration https://www.opencart.com/index.php?route=marketplace/extension&filter_member=zohaibfk