There are two ways of using SVG in HTML via <use>: with external source and without it. “The use element takes nodes from within the SVG document, and duplicates them somewhere else” – MDN. In the first case, the SVG graphics insertion (duplication) usually looks like this: The good: the file sprite.svg will be cached by the browser. The bad: this technique does not work in IE11 and below (luckily
