The title block is a navigation item to identify a section home and an optional related "umbrella" section. For example, for a School, the section title would be the name of the School and the umbrella section title would be a link to the College.

Although this is a navigation item, it is not a navigation landmark region and should not be marked up with <nav> or role="navigation"

The title block is required if there is a hero banner image, otherwise it can be omitted.

The title block should not be used if the page h1 is elsewhere in the masthead.

The two links can either be <h1> and <h2> tags, or spans styled with classes .h1 and .h2. If you have a page heading in the main content region, this should use the <h1> tag, and so you should not have an <h1> in the title block, instead you should use spans and classes.

If there is no page title in the main content region, such as a panel layout for the section homepage, then the page's <h1> should be in the title block.

Both the section title and umbrella section title should be links, except for where the <h1> section title would link to the current page, in which case it would not be appropriate to include <a> tags.

Note, although semantically the section title needs to be <h1> with the umbrella section being a subtitle (<h2>) to this, the CSS will reverse the display order so the umbrella section title visually appears above the section title.