LeWitt animate
This example animates a grid of vertical lines, each moving upward at a random speed to create a lively, generative pattern. It renders SVG rectangles directly with JavaScript, setting each line’s fill to a bright green (#00FF66). The animation uses the Web Animations API via `element.animate`, applying an infinite, randomized `translateY` keyframe over a duration of up to 3000 milliseconds. A circular mask highlights the central region, while the page size adapts to the browser window, showing a minimal HTML/CSS approach without external libraries.