loader.css

/* 
** Simple CSS loader. Since font-size and color are both inherited, you can drop this 
** anywhere and it should just work.
*/

.loading {
  display: inline-block;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  border: 0.1em solid;
  border-top-color: white;
  box-sizing: border-box;
  animation: loading 1.2s linear infinite;
  -webkit-animation: loading 1.2s linear infinite;
}
@keyframes loading {
  0% {transform:rotate (0deg)}
  100% {transform: rotate(360deg)}
}
@-webkit-keyframes loading {
  0% {-webkit-transform: rotate(0deg)}
  100% {-webkit-transform: rotate(360deg)}
}