img is a tag representing an image elementURL is a filepath representing where to find (locate) the image (resource)in HTML, the type of value supplied to the src attribute (property) is a URLsrc for an img element cannot be declared in CSS, nor is src an available CSS property for any other elementhowever, CSS does accept URLs (URIs) as values for some other specific properties (such as background-image, border-image-source, etc.) if enclosed in the url() function notationhttps://developer.mozilla.org/en-US/docs/Web/CSS/urlHopefully some part of this provides the answer for whichever question you probably meant to ask, since the question is rather unclear in its present form.Happy coding!
