# Showcase

The flagship tour of XWUIBanner. It covers the four variants with their default icons, action buttons wired to real handlers, the `closable`, `showIcon` and `ariaLabel` knobs, and passing an HTMLElement as `content` for richer markup.

The last section drives the imperative API: `setContent()` swaps the message in place, `setOnClose()` reports a dismissal, and `close()` removes the banner from code.