This page has a landing header. You can specify any page to be used as the header’s content. That page’s background will be used as the header background.
Initially the header fills the entire height of the browser even if the content is not high enough. When the visitor scrolls down, the header sticks at the top part of the browser but collapses becoming smaller up until it fits the size of the content inside.
Scroll up and down to see the effect.