Output: Or, the filter can be referenced and applied to HTML content elsewhere. The URL points to the ID of the SVG … HTML SVG is a modularized language which is used to describe graphics in XML. An SVG can be inlined directly in CSS code as a background image. HTML SVG is used to describe graphics. SVG Tutorial. The numbers in the table specify the first browser version that fully supports the SVG and useful for defining graphics such as boxes, circles, text, etc. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. svg. But in XHTML, the () tag must be closed (). If you want to change your SVG image, you have to load it using