body {
  background: url(../img/bg.jpg);
  background-size: cover;
  width: 100%;
  height: 100%;
  background-position: center;
  background-color: black;
}
.borde-top {
  width: 100vw;
  height: 45px;
  background-image: url(../img/border.jpg);
  position: absolute;
  top: 0;
  background-size: contain;
  background-repeat-y: no-repeat;
}
.borde-bottom {
  width: 100vw;
  height: 45px;
  background-image: url(../img/border.jpg);
  position: absolute;
  bottom: 0;
  background-size: contain;
  background-repeat-y: no-repeat;
}
.logo-concurso {
  margin-top: 45px;
}

.full-height {
  height: 100vh;
}

@-webkit-keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

.fadeIn {
  -webkit-animation-duration: 5s;
  animation-duration: 5s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
  -webkit-animation-name: fadeIn;
  animation-name: fadeIn;
}
.delay {
  animation-delay: 2s;
}
@media only screen and (max-width: 600px) {
  body {
    background-position-x: 85%;
  }
  .borde-top,
  .borde-bottom {
    height: 30px;
    background-size: cover;
  }
  .full-height {
    height: 80vh;
  }
}