Headings

Only one <h1> element allowed in a document or article.

example code	result
`<h1>Header 1</h1> <h2>Header 2</h2> <h3>Header 3</h3> <h4>Header 4</h4> <h5>Header 5</h5> <h6>Header 6</h6>`	Header 1 Header 2 Header 3 Header 4 Header 5 Header 6