CODE EXAMPLE FOR CSS

use svg icon to before after

#mydiv::before {
  content: url("data:image/svg+xml; utf8, <svg ... code here</svg>");
  display: block;
  width: 22px;
  height: 10px;
  margin: 10px 5px 0 10px;
}

And use this website for encode the svg: 
https://yoksel.github.io/url-encoder/