A wrapper element that positions a Header and other content. Based on Polymer's app-header-layout element using vanilla web technologies (CSS, JavaScript and HTML).

• Basic header layout - Positions a header and other content in a custom scrolling region
• Header layout within drawer - Positions a header and other content within a drawer
• Header layout within drawer with header transform effects - Positions a header and other content within a drawer and use transform effects on header elements based on scroll position