This example is an animated sunset scene rendered entirely as inline SVG. It shows a circular sun descending and fading over a grassy field while the sky’s colors shift through a sequence of gradient changes. The piece uses SVG’s native `<animate>` elements to transition the circle’s `cy` position and opacity, alongside animated `stop-color` values within a `linearGradient`. The `viewBox` and `preserveAspectRatio` attributes control the responsive scaling of the 800×400 coordinate system.