HTML Starter
A bright yellow SVG face with black outlined eyes and a wide open mouth is rendered in a 600x400 viewport. The face is built using D3 v5 selection and shape APIs, including `d3.select`, `arc`, and `append`. The layout is computed from the SVG's width and height attributes, with circles for eyes and an arc path for the mouth. The code runs in a React framework, loading D3 from a CDN, and centers the face via a translated group element. The SVG container has a light grey background from CSS.