To use positioning on an element, you must first declare its position property to be absolute or relative: H1 { position: absolute } Then you can add whatever positioning properties you like. For ...

“The <article> HTML element represents a self-contained composition in a document, page, application, or site, which is intended to be independently distributable or reusable (e.g., in syndication).

Many HTML elements have purposes that are not directly ranking related but still communicate information about the webpage. Listen to Mueller answer the question in the SEO Office Hours recording ...