SVG Fundamentals
This example demonstrates fundamental SVG shapes and styling, showing how circles, rectangles, lines, and paths are rendered inside an SVG canvas. The visualization uses raw SVG markup within an HTML page, applying CSS rules to style the `rect` element with fill, stroke, and opacity properties and a hover effect that changes its fill color to green. The code directly embeds SVG tags like `<circle>`, `<rect>`, `<line>`, and `<path>` with attributes such as `cx`, `cy`, `r`, `x`, `y`, `width`, `height`, and `d` to define geometry and coordinates. No external data or JavaScript libraries are used; rendering relies solely on the browser’s SVG support and CSS styling.