This example generates a full-screen SVG landscape featuring a gradient sky, a sun, birds, and a tree, all composed with native SVG elements and CSS animations. The scene is built using JavaScript to create SVG nodes via `document.createElementNS`, while the sky and sun colors shift over a 24-second cycle through `animate` elements. Birds are duplicated and transformed using CSS `scale`, `translate`, and `rotate`, and the land and tree shapes are styled with inline CSS classes. The code references external SVG tutorials for the bird, sun, and land designs.