The left hand navigation has been removed for demonstrating this component as it is full width.
A landing page can feature tiles of all of the child pages, it offers a visual identifier (heading, blurb and image) for the content housed under that tile.
Guide to adding section tiles (requires log-in)
If not marked as decorative, all images must have alternative (or alt) text to describe the information or function of the image: accessibility.sa.gov.au/your-role/content/images