.block_refresh{
  background: url("http://datateca.unad.edu.co/contenidos/publicaciones/Comunicaciones_VIMEP/2021/bloque_revisor/img/refresh.png") no-repeat;
  background-size: 100% 25px;
  height: 25px;
	width: 25px;
  border: none;
  float: right;
  cursor: pointer;
}

.refresh_animate{
	animation-name: refresh;
  animation-duration: 1s;
}

@keyframes refresh {
  from {
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  transform: rotate(0deg);
  }
  to {
  -webkit-transform: rotate(180deg);
  -moz-transform: rotate(180deg);
  transform: rotate(180deg);
  }
}