A layout wraps a page's content inside a shared template. The page fills in the `@Body` placeholder, and the layout provides the surrounding structure. But what about content that needs to travel in the other direction? What if a page needs to set the browser's title bar, inject a `` tag into the document ``, or render something into a region that belongs to the layout (such as a toolbar or a sidebar)? Blazor solves these problems with **outlets**: projection points that let a child component contribute content to a parent or sibling location in the render tree. Outlets give us two-way content projection. There are two kinds of outlet in Blazor: - **Head outlets** let components control the document ``. Any component anywhere in the tree can set the page title or emit ``, ``, `