react-toolbox-build4server/react-toolbox/js/avatar/style.css

Builds react-toolbox in such a way that it's components can be required and used in node - most likely for server-side rendered webapps - without having to depend on webpack to build your entire server-side project

.rt-avatar-avatar {
  position: relative;
  display: inline-block;
  width: 4rem;
  height: 4rem;
  overflow: hidden;
  font-size: 2.4rem;
  color: white;
  text-align: center;
  background-color: #9e9e9e;
  border-radius: 50%; }
  .rt-avatar-avatar > svg {
    width: 1em;
    height: 4rem;
    fill: currentColor; }
  .rt-avatar-avatar > img {
    max-width: 100%;
    height: auto; }

.rt-avatar-image {
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  background-color: transparent;
  background-position: center;
  background-size: cover;
  border-radius: 50%; }

.rt-avatar-letter {
  display: block;
  width: 100%;
  line-height: 4rem; }