@import url("https://fonts.googleapis.com/css?family=Nunito:400,600,700");
@keyframes floating {
  from {
    transform: translateY(0px);
  }
  65% {
    transform: translateY(15px);
  }
  to {
    transform: translateY(0px);
  }
}
html {
  height: 100%;
}
body {
  background-image: url("../images/star.svg"), linear-gradient(to bottom, #05007A, #4D007D);
  height: 100%;
  margin: 0;
  background-attachment: fixed;
  overflow: hidden;
}
.mars {
  left: 0;
  right: 0;
  bottom: 0;
  position: absolute;
  height: 27vmin;
  background: url("../images/mars.svg") no-repeat bottom center;
  background-size: cover;
}
.logo-title {
  position: absolute;
  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  top: 5vmin;
  width: 50vmin;
}
@media (max-width: 480px) and (min-width: 320px) {
  .logo-title {
    top: 35vmin;
  }
}
.meteor {
  position: absolute;
  right: 2vmin;
  top: 16vmin;
}
.title {
  color: #ffec85;
  font-family: "Nunito", sans-serif;
  font-weight: 600;
  text-align: center;
  font-size: 10vmin;
  margin-top: 28vmin;
}
@media (max-width: 480px) and (min-width: 320px) {
  .title {
    margin-top: 65vmin;
  }
}
.subtitle {
  color: white;
  font-family: "Nunito", sans-serif;
  font-weight: 500;
  text-align: center;
  font-size: 4vmin;
  letter-spacing: 3px;
  margin-top: -10vmin;
  margin-bottom: 5vmin;
}
.description {
  color: white;
  font-family: "Nunito", sans-serif;
  font-weight: 500;
  text-align: center;
  font-size: 4vmin;
  letter-spacing: 3px;
  margin-top: -5vmin;
  margin-bottom: 5vmin;
}
.subtitle2 {
  color: white;
  font-family: "Nunito", sans-serif;
  font-weight: 200;
  text-align: center;
  font-size: 2.5vmin;
  line-height: 4vmin;
  margin-top: -5vmin;
  margin-bottom: 5vmin;
}
.footer {
  color: #11007a;
  font-family: "Nunito", sans-serif;
  font-weight: 100;
  font-size: 1.5vmin;
  text-align: center;
  position: absolute;
  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  top: 95vmin;
  z-index: 999;
}
.footer a:link {
	color: #11007a;
	text-decoration: none;
}
.footer a:visited {
	color: #11007a;
	text-decoration: none;
}
.footer a:hover {
	text-decoration: underline;
}
@media (max-width: 480px) and (min-width: 320px) {
  .footer {
    top: 160vmin;
  }
}
.btn-back {
  border: 1px solid white;
  color: white;
  height: 5vmin;
  padding: 10px;
  margin: 10px;
  font-family: "Nunito", sans-serif;
  text-decoration: none;
  border-radius: 5px;
}
.btn-back:hover {
  background: white;
  color: #4D007D;
}
@media (max-width: 480px) and (min-width: 320px) {
  .btn-back {
    font-size: 3.5vmin;
  }
}
.astronaut {
  position: absolute;
  top: 18vmin;
  left: 10vmin;
  height: 28vmin;
  animation: floating 3s infinite ease-in-out;
}
@media (max-width: 480px) and (min-width: 320px) {
  .astronaut {
    top: 2vmin;
  }
}
.spaceship {
  position: absolute;
  bottom: 15vmin;
  right: 24vmin;
}
@media (max-width: 480px) and (min-width: 320px) {
  .spaceship {
    width: 45vmin;
    bottom: 18vmin;
  }
}
.wechat {
  width: 18.4vmin;
  height: 20vmin;
  position: absolute;
  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  top: 73vmin;
}
@media (max-width: 480px) and (min-width: 320px) {
  .wechat {
    top: 120vmin;
  }
}