SVG Fundamentals
This example demonstrates a minimal SVG data visualization, showing a single black line segment drawn inside an SVG canvas. The code uses an SVG `<path>` element with a hardcoded `d` attribute specifying the line from coordinates (400,400) to (500,500), along with a `stroke` styling attribute. It relies on standard HTML, CSS, and JavaScript, with CSS controlling the page’s message styling and inline SVG rendering the graphics. No external libraries are used, and the visualization is purely static, with no data beyond the explicit coordinates.