New Face with D3.js!
A blue SVG smiley face with black-outlined eyes and a curved mouth animates on a 960-by-500 canvas. D3.js v5 selection and transition methods move its rectangular eyebrows up and down in a two-second cycle, demonstrating basic DOM manipulation without data binding. The code uses `select`, `arc`, and chained `transition().duration()` calls, with layout defined by fixed pixel offsets.