The H1 is the main page heading

Page Title / Section Title

The H2 is the page level or section heading

Page Title / Section Title

The secondary header above is an h2 element, which may be used for any form of important page-level header. More than one may be used per page. Consider using an h2 unless you need a header level of less importance, or as a sub-header to an existing h2 element.

The H3 is a third-level heading

Section Header / Banner Title / Section Subhead

The header above is an h3 element, which may be used for any form of page-level header which falls below the h2 header in a document hierarchy.

The H4 is the fourth-level heading

Sub Header

Typically used for article title or call-to-action elements.

The H5 is the fifth-level heading

Sub Header

The H6 is the sixth-level heading and the lowest

Sub Header

Each heading has an accompanying class that can be used for styling any element without the need or restriction of SEO impact.