SVG stands for Scalable Vector Graphics. SVG is used to define graphics for the Web
The HTML <svg>
element is a container for SVG graphics.
SVG has several methods for drawing paths, boxes, circles, text, and graphic images.
SVG is an XML-based language for creating scalable vector images. It can be written directly into an HTML document or embedded from external SVG files. Inline SVG can be restyled and modified using CSS and JavaScript respectively.
Browser support for SVG varies, but can be ascertained here.
For more comprehensive information, see the SVG documentation.