.roundBtn,
.appendcartIconSPin
{
    animation-name: spin;
    animation-duration: 1000ms;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
}
@keyframes spin 
{
from 
  {
  transform: rotate(0deg);
  }
to 
  {
   transform: rotate(360deg);
  }
}