.section {
  background-image: url('../images/christmas5.jpg');
  background-position: 0 0;
  background-size: auto;
  justify-content: center;
  align-items: center;
  height: 100vh;
  display: flex;
}

.code-embed {
  border: 10px solid #fff;
}

.code-embed.tablet, .code-embed.mobile {
  display: none;
}

@media screen and (max-width: 991px) {
  .code-embed.desktop {
    display: none;
  }

  .code-embed.tablet {
    width: 100%;
    display: block;
  }

  .code-embed.mobile {
    display: none;
  }
}

@media screen and (max-width: 767px) {
  .code-embed.tablet {
    display: none;
  }

  .code-embed.mobile {
    width: 100%;
    display: block;
  }
}

@media screen and (max-width: 479px) {
  .code-embed.mobile {
    display: block;
  }
}