p {
  margin: 30px;
  padding: 15px;
  text-align: center;
  border: 1px solid;
  font: 26px "Times New Roman", Times, serif;
  transform: perspective(1000px) rotate3d(0, 1, 0, 45deg);
}
header {
  margin: 30px;
  padding: 15px;
  text-align: center;
  border: 1px solid;
  animation: mianimacion 1s linear 0s infinite normal none;
}
@keyframes mianimacion {
  20% {
    background: #FFFFFF;
  }
  35% {
    transform: scale(0.5);
    background: #FFFF00;
  }
  50% {
    transform: scale(1.5);
    background: #FF0000;
  }
  65% {
    transform: scale(0.5);
    background: #FFFF00;
  }
  80% {
    background: #FFFFFF;
  }
}
#titulo {
  font: bold 26px Verdana, sans-serif;
}