Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as section.
The <section> element can be used to define sections of a document, like chapters, tabbed content, etc. Consider using a heading element (any of <h2> to </h6>) to present each section. Example:
<h1>All about guitars</h1> <section> <h2>Guitar types</h2> <p>Acoustic, electric, classical... we have them all!</p> </section> <section> <h2>Amplifiers</h2> <p>Analog, digital, portable...</p> </section>
The main element represents the dominant contents of the document, so it should not be contained within another section.
A document must not have more than one main element that does not have the hidden attribute specified.
A hierarchically correct main element is one whose ancestor elements are limited to html, body, div, form without an accessible name, and autonomous custom elements. Each main element must be a hierarchically correct main element.
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