body {
  overflow: hidden;padding:0;margin:0;
}

#sky {
  --background: #26B8CE;
  height: 100vh;
  width: 100vw;
  transition: background 250ms ease;
  background: var(--background);
}

#moon, #sun {
  position: absolute;
  top: 50%;
  left: 50%;
  transition: -webkit-transform 1s ease;
  transition: transform 1s ease;
  transition: transform 1s ease, -webkit-transform 1s ease;
  z-index: 2;
}

#moon {
  --moveMoon: translate(200%, 200%);
  width: 33vw;
  height: 33vw;
  -webkit-transform: var(--moveMoon);
          transform: var(--moveMoon);
}

#sun {
  --move: translate(-50%, -50%);
  width: 50vw;
  height: 50vw;
  -webkit-transform: var(--move);
          transform: var(--move);
}
#sun #rays {
  -webkit-animation: rotateRays 7s linear infinite;
          animation: rotateRays 7s linear infinite;
  -webkit-transform: rotate(180deg);
          transform: rotate(180deg);
  -webkit-transform-origin: center;
          transform-origin: center;
}

@-webkit-keyframes rotateRays {
  0% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
  100% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
}

@keyframes rotateRays {
  0% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
  100% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
}
.cloud {
  --moveCloud: translate(0%, 0%);
  width: 20vw;
  top: 35vh;
  left: 20vw;
  position: absolute;
  -webkit-transform: var(--moveCloud);
          transform: var(--moveCloud);
  transition: 1.5s ease-in-out;
}
.cloud.cloud2 {
  top: 25vh;
  left: 60vw;
  -webkit-transform: var(--moveCloud);
          transform: var(--moveCloud);
}
.cloud.cloud3 {
  top: 65vh;
  left: 56vw;
  -webkit-transform: var(--moveCloud);
          transform: var(--moveCloud);
}

.stars {
  --visibility: 0;
  --delay: 0;
  width: 60vw;
  opacity: var(--visibility);
  transition: opacity 250ms 1s ease;
  transition-delay: var(--delay);
  position: absolute;
  top: 0;
  left: 0;
}
.stars.stars2 {
  opacity: var(--visibility);
  top: 0;
  left: 50%;
  -webkit-transform: rotate(-90deg);
          transform: rotate(-90deg);
}
.stars path {
  fill: #223F47;
}