.sea {
          margin: 50px 0px;
  overflow: hidden;
}
.sea .bubble {
     position: absolute;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: #752d85;
    opacity: 0.9;
    animation: bubble1-h-movement 1s ease-in infinite, bubble1-v-movement 300ms ease-in-out infinite alternate, bubble-scale-movement 300ms ease-in-out infinite alternate;
	}
.sea .bubble:after {
  position: absolute;
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #6bafca;
  opacity: 0.9;
}
.sea .bubble:after {
  top: -20;
  left: 100px;
  width: 9px;
  height: 9px;
}
.sea .circle-wrapper {
      position: relative;
    background: #752d85;
    width: 300px;
    height: 300px;
    margin: 10px auto 0 auto;
    overflow: hidden;
    z-index: 0;
    border-radius: 50%;
    padding: 0 50px 0 50px;
    border: 6px solid #e9165d;
}
.sea .submarine-wrapper {
  height: 300px;
  width: 300px;
  padding: 30px 50px 30px 150px;
  margin: 0 auto 0 auto;
  animation: diving 3s ease-in-out infinite, diving-rotate 3s ease-in-out infinite;
}
.sea .submarine-wrapper .submarine-body {
  width: 150px;
    height: 80px;
    position: absolute;
    margin-top: 50px;
    left: 25px;
    background-color: #e9165d;
    border-radius: 40px;
    background: linear-gradient(#e9165d, #bc243d);
}
.sea .submarine-wrapper .submarine-body .light {
  position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 40px 150px 40px;
    border-color: transparent transparent #e9165d transparent;
    transform: rotate(-50deg);
    top: 40px;
    left: 99%;
}
.sea .submarine-wrapper .submarine-body .light:after {
  content: "";
  position: absolute;
  width: 20px;
  height: 13px;
  border-radius: 5px;
  background-color: #d12844;
  margin-left: -10px;
}
.sea .submarine-wrapper .submarine-body .window {
  width: 37px;
  height: 37px;
  position: absolute;
  margin-top: 23px;
  right: 18px;
  background: linear-gradient(#1e4554, #183642);
  border-radius: 50%;
  border: 3px solid #d93a54;
}
.sea .submarine-wrapper .submarine-body .window:after {
  content: "";
  position: absolute;
  margin-top: 3px;
  margin-left: 3px;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background-color: transparent;
  opacity: 0.8;
  border-top: 3px solid white;
  transform: rotate(-45deg);
}
.sea .submarine-wrapper .submarine-body .engine {
  width: 30px;
  height: 30px;
  position: absolute;
  margin-top: 32px;
  left: 53px;
  background-color: #bc243d;
  border-radius: 50%;
  border: 5px solid #d93a54;
}
.sea .submarine-wrapper .submarine-body .engine:after, .sea .submarine-wrapper .submarine-body .engine:before {
  position: absolute;
  content: "";
  border-radius: 2px;
  background-color: white;
  animation: spin 900ms linear infinite;
  opacity: 0.8;
}
.sea .submarine-wrapper .submarine-body .engine:after {
  top: 8px;
  width: 20px;
  height: 4px;
}
.sea .submarine-wrapper .submarine-body .engine:before {
  left: 8px;
  width: 4px;
  height: 20px;
}
.sea .submarine-wrapper .helix {
  width: 30px;
  height: 70px;
  position: absolute;
  margin-top: 55px;
  left: 0;
  background-color: #d93a54;
  border-radius: 7px;
  background: linear-gradient(#d93a54, #bc243d);
}
.sea .submarine-wrapper .helix:after {
  content: "";
  position: absolute;
  margin-top: 5px;
  margin-left: 7px;
  width: 17px;
  height: 60px;
  border-radius: 3px;
  background-color: transparent;
  opacity: 0.8;
  background: linear-gradient(to bottom, #d93a54, #d93a54 50%, #e57a8c 50%, #e57a8c);
  background-size: 100% 20px;
  animation: helix-movement 110ms linear infinite;
}
.sea .submarine-wrapper .hat {
  width: 65px;
  height: 25px;
  position: absolute;
  margin-top: 26px;
  left: 70px;
  background-color: #d93a54;
  border-radius: 10px 10px 0 0;
  background: linear-gradient(#d93a54, #d72d49);
}
.sea .submarine-wrapper .hat .periscope {
  position: absolute;
  width: 7px;
  height: 20px;
  background-color: #d93a54;
  margin-top: -27px;
  margin-left: 32px;
  border-radius: 5px 5px 0 0;
}
.sea .submarine-wrapper .hat .periscope:after, .sea .submarine-wrapper .hat .periscope:before {
  content: "";
  position: absolute;
  width: 15px;
  height: 7px;
  border-radius: 5px;
  background-color: #d93a54;
}
.sea .submarine-wrapper .hat .leds-wrapper {
  width: 53px;
  height: 13px;
  position: relative;
  top: 7px;
  left: 7px;
  background-color: #d93a54;
  border-radius: 10px;
  background: linear-gradient(#b3233a, #a21f35);
}
.sea .submarine-wrapper .hat .leds-wrapper .leds {
  position: absolute;
  margin-top: 4px;
  margin-left: 7px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: white;
  animation: leds-off 500ms linear infinite;
}
.sea .submarine-wrapper .hat .leds-wrapper .leds:after, .sea .submarine-wrapper .hat .leds-wrapper .leds:before {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: white;
}
.sea .submarine-wrapper .hat .leds-wrapper .leds:after {
  margin-top: 0px;
  margin-left: 17px;
}
.sea .submarine-wrapper .hat .leds-wrapper .leds:before {
  margin-top: 0px;
  margin-left: 34px;
}
@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}
@keyframes leds-off {
  100% {
    opacity: 0.3;
  }
}
@keyframes helix-movement {
  100% {
    background: linear-gradient(to bottom, #e57a8c 50%, #e57a8c, #d93a54, #d93a54 50%);
    background-size: 100% 20px;
  }
}
@keyframes diving {
  0% {
    margin-top: 5px;
  }
  50% {
    margin-top: 15px;
  }
  100% {
    margin-top: 5px;
  }
}
@keyframes diving-rotate {
  0% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(3deg);
  }
  75% {
    transform: rotate(-2deg);
  }
  100% {
    transform: rotate(0deg);
  }
}
@keyframes bubble1-h-movement {
  0% {
    margin-left: 80%;
  }
  100% {
    margin-left: -100%;
  }
}
@keyframes bubble2-h-movement {
  0% {
    margin-left: 65%;
  }
  100% {
    margin-left: -5%;
  }
}
@keyframes bubble1-v-movement {
  0% {
    margin-top: 115px;
  }
  100% {
    margin-top: 160px;
  }
}
@keyframes bubble2-v-movement {
  0% {
    margin-top: 115px;
  }
  100% {
    margin-top: 90px;
  }
}
@keyframes bubble-scale-movement {
  0% {
    transform: scale(1.4);
  }
  100% {
    transform: scale(0.9);
  }
}
@keyframes light-movement {
  0% {
    transform: rotate(-40deg);
  }
  50% {
    transform: rotate(-70deg);
  }
  100% {
    transform: rotate(-40deg);
  }
}