Which statement is correct?
The <main> element represents the dominant content of an <article> in a document.
<main>
<article>
The <article> element represents the dominant content of your document. There can be only one <article> element that is not hidden. Source
The <main> element represents the dominant content of a <section> of a document. You may have one <main> element per section.
<section>
The <main> element represents the dominant content of your document. There can be only one <main> element that is not hidden.