#contenedor-articulo > div.pmk-share{
  /* Choose the animation */
  animation-name: movingBox;

  /* The animation’s duration */
  animation-duration: 900ms;

  /* The number of times we want
      the animation to run */
 /* animation-iteration-count: infinite;*/
 -webkit-animation-iteration-count: 1; /* Chrome, Safari, Opera */
    animation-iteration-count: 1;

  /* Causes the animation to reverse
      on every odd iteration */
  animation-direction: alternate;
}

@keyframes movingBox {
  0% {
    transform: translate(0, 0);
    opacity: 0.3;
  }

  25% {
    opacity: 0.9;
  }

  50% {
    transform: translate(-1000px, -1000px);
    opacity: 0.2;
  }

  100% {
    transform: translate(30px, 30px);
    opacity: 0.8;
  }
}
/*#contenedor-articulo > div.pmk-share{
  animation-duration: 900ms;
  animation-name: slidein;
}
@keyframes slidein {
  from {
    margin-left: 100%;
    /*width: 300%;*/ 
 /* }

  to {*/
    /*margin-left: 0%;*/
   /* width: 100%;*/
  }
.barra_anuncio i{
  margin: 0;
  font-size:3em;
  margin-right: 14px;
  
}