* {
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  position: relative;
  background: url(../img/bg.jpg) center center/cover no-repeat;
}

@keyframes bounceIn {
  0% {
    top: 20%;
    transform: scale(0.6);
    opacity: 0;
  }

  80% {
    transform: scale(1.2);
    opacity: 0.6;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

img {
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -300px;
  margin-top: -300px;
  animation: bounceIn 2.5s;
}