To start any website with an HTML template, you will need content free or premium.
You can also design an online presentation of various forms of a single page website with a click. They are clean, free templates and have a live demo. And please note that most of the page templates have simple HTML. A landing page usually comes as a template demo supplied by free CSS templates or free CSS website, allowing to catch visitor's interest with various color schemes and a collection of stylish web design template and elements. The builder uses an HTML ecommerce website template for a simple landing page as a complete or fully responsive website became spread and popular. Web design and responsive site prototyping, including eCommerce, have changed recently.