* {
  margin: 0;
  padding: 0;
}
.bird {
  position: absolute;
  z-index: 10;
  top: 30px;
  left: 20px;
  width: 15px;
  height: 10px;
  background-color: black;
  border-radius: 45%;
  animation: mover 25s linear infinite;
}
#secondBird {
  top: 50px;
  left: 40px;
  animation: mover1 20s ease infinite;
}
#thirdBird {
  top: 250px;
  left: 20px;
  animation: mover2 28s ease-in-out infinite;
}
.bird::before {
  position: absolute;
  content: "";
  top: -5px;
  left: -25px;
  width: 30px;
  height: 20px;
  border: 0 solid transparent;
  border-right: 0;
  border-top: 6px solid black;
  transform: rotate(20deg);
  transform-origin: 100% 50%;
  animation: flap 1s infinite alternate;
}
.bird:after {
  position: absolute;
  content: "";
  top: -5px;
  left: 10px;
  width: 30px;
  height: 20px;
  border: 0 solid transparent;
  border-left: none;
  border-top: 6px solid black;
  transform: rotate(-20deg);
  transform-origin: 0 50%;
  border-radius: 40%;
  animation: flap1 1s infinite alternate;
}
@keyframes mover {
  0% {
    left: 0px;
    top: 30px;
    transform: scale(0.3);
  }
  50% {
    top: 200px;
    transform: scale(1);
  }
  100% {
    left: 96%;
    top: 0;
    transform: scale(0.3);
  }
}
@keyframes mover1 {
  0% {
    left: 40px;
    top: 50px;
    transform: scale(0.3);
  }
  50% {
    top: 240px;
    transform: scale(1);
  }
  100% {
    left: 96%;
    top: 0;
    transform: scale(0.3);
  }
}
@keyframes mover2 {
  0% {
    left: 20px;
    top: 250px;
    transform: scale(0.3);
  }
  50% {
    top: 100px;
    transform: scale(1);
  }
  100% {
    left: 96%;
    top: 0;
    transform: scale(0.3);
  }
}
@keyframes flap {
  0% {
    border-radius: 30%;
    transform: rotate(-20deg);
  }
  100% {
    border-radius: 50%;
    transform: rotate(40deg);
  }
}
@keyframes flap1 {
  0% {
    border-radius: 30%;
    transform: rotate(20deg);
  }
  100% {
    border-radius: 50%;
    transform: rotate(-40deg);
  }
}
#container {
  position: relative;
  display: flex;
  flex-flow: column nowrap;
  width: 100vw;
  height: 100vh;
}
#container #sky {
  position: relative;
  display: flex;
  flex-flow: row nowrap;
  justify-content: center;
  height: 50%;
  width: 100%;
  background: #212121;
}
#container #sky #sunLight {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, #ff5d2d, #ffe61b);
  animation: over 15s linear forwards;
}
#container #sky #sun {
  position: absolute;
  z-index: 2;
  opacity: 0.5;
  bottom: -200px;
  width: 200px;
  height: 200px;
  background: linear-gradient(#ff0, #d00);
  box-shadow: 0 0 40px 6px #f20, 0 0 150px 10px #f33;
  border-radius: 50%;
  animation: sunRise 15s linear forwards;
}
#container #sky #cloud {
  position: absolute;
  top: 30%;
  left: 60%;
  z-index: 3;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: #fff 65px -15px 0 -5px, #fff 25px -25px, #fff 30px 10px, #fff 60px 15px 0 -10px, #fff 85px 5px 0 -5px;
  background-color: #fff;
  animation: over1 15s linear forwards;
}
#container #sky #cloudSecond {
  position: absolute;
  top: 30%;
  left: 60%;
  z-index: 3;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: #fff 65px -15px 0 -5px, #fff 25px -25px, #fff 30px 10px, #fff 60px 15px 0 -10px, #fff 85px 5px 0 -5px;
  background-color: #fff;
  animation: over1 15s linear forwards;
  left: 40%;
  top: 50%;
  width: 80px;
}
@keyframes sunRise {
  from {
    opacity: 0.5;
    bottom: -200px;
  }
  to {
    bottom: 0;
    opacity: 1;
  }
}
#container #sea {
  position: relative;
  display: flex;
  flex-flow: row nowrap;
  justify-content: center;
  z-index: 10;
  height: 50%;
  width: 100%;
  background: radial-gradient(at 50% 0, #007, #004);
  overflow: hidden;
}
#container #sea #light {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  background: radial-gradient(at 50% 0, #d2691e, transparent);
  animation: over 15s linear forwards;
}
#container #sea #sunShadow {
  position: absolute;
  opacity: 0;
  width: 200px;
  height: 200px;
  background: linear-gradient(to bottom, #d2691e 50%, 50%, #4C264D 52%, 52%, #d2691e 54%, 54%, #4C264D 58%, 58%, #d2691e 60%, 60%, #4C264D 66%, 66%, #d2691e 68%, 68%, #4C264D 76%, 76%, #d2691e 78%, 78%, #4C264D 87%, 87%, #d2691e 89%, 89%, #4C264D 98%, 98%, #d2691e 100%);
  border-radius: 50%;
  animation: shadowAppear 15s linear forwards;
}
#container #sea #boat {
  position: absolute;
  top: 270px;
  right: 70px;
  z-index: 3;
  width: 100px;
  height: 5px;
  border: 2px solid transparent;
  border-left: 2px solid black;
  border-bottom: 4px solid black;
  border-radius: 20%;
  box-shadow: 90px 10px 5px -5px #e3d4da;
  animation: move 35s linear infinite;
}
#container #sea #boat #man {
  position: absolute;
  left: 50%;
  top: -30px;
  z-index: 4;
  border: 10px solid transparent;
  border-bottom: 10px solid black;
}
#container #sea #boat #man::after {
  content: "";
  position: absolute;
  top: -15px;
  left: -20px;
  z-index: 4;
  height: 20px;
  width: 20px;
  border: 10px solid transparent;
  border-bottom: 20px solid black;
  border-radius: 50%;
}
#container #sea #boat::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  width: 100px;
  height: 5px;
  border: 2px solid transparent;
  border-left: 2px solid black;
  border-bottom: 4px solid black;
  border-radius: 20%;
}
#container #sea #boat::after {
  content: "";
  position: absolute;
  top: 12px;
  left: 0;
  width: 100px;
  height: 5px;
  border: 2px solid transparent;
  border-left: 2px solid black;
  border-bottom: 4px solid black;
  border-radius: 20%;
}
#container #sea #line {
  position: absolute;
  left: 20px;
  top: -30px;
  width: 20px;
  height: 50px;
  border: 1px solid black;
  border-left: none;
  border-bottom: 0;
  transform: rotate(-45deg);
  border-radius: 50%;
}
#container #sea #line::after {
  position: absolute;
  content: "";
  left: 0;
  top: 10px;
  width: 10px;
  height: 5px;
  background-color: rgba(40, 40, 130, 0.5);
  border-radius: 50%;
}
@keyframes move {
  to {
    right: 100%;
  }
}
@keyframes shadowAppear {
  from {
    top: -200px;
    opacity: 0;
  }
  to {
    top: 0;
    opacity: 0.5;
  }
}
@keyframes over {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 0.5;
  }
}
@keyframes over1 {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 0.6;
    box-shadow: #d2691e 65px -15px 0 -5px, #d2691e 25px -25px, #d2691e 30px 10px, #d2691e 60px 15px 0 -10px, #d2691e 85px 5px 0 -5px;
    background-color: #d2691e;
  }
}
@media screen and (max-width: 765px) {
  #cloud {
    transform: scale(0.5);
  }
  #cloudSecond {
    transform: scale(0.3);
  }
}