.resplandorExteriorMod
{
  animation-duration: 1s;
  animation-name: sombra;
  animation-iteration-count: infinite;
  -webkit-animation-duration: 1s;
  -webkit-animation-name: sombra;
  -webkit-animation-iteration-count: infinite;
  padding: 0px 0px 0px 0px;
}

    @keyframes sombra{
      50% {transform: scale(1.1)}
      100% {transform: scale(1)}
    }
    @-moz-keyframes sombra{
      50% {transform: scale(1.1)}
      100% {transform: scale(1)}
    }
    @-webkit-keyframes sombra{
      50% {transform: scale(1.1)}
      100% {transform: scale(1)}
    }