Why don’t my SVG images scale using the CSS “width” property?

Answer 1

1. If the svg file has a height and width already defined width="100" height="100" in the svg file then add this x="0px" y="0px" width="100" height="100" viewBox="0 0 100 100" while keeping the already defined width="100" height="100".
2. Then you can scale the svg in your css file by using a selector in your case img so you could then do this: img{height: 20px; width: 20px;} and the image will scale.