灯摆动画

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html

css

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html

css

*, *::after, *::before {
  box-sizing: border-box;
}

body {
  background: #001933;
}

.container {
  width: 75px;
  height: 275px;
  animation: bulb-swing 3s infinite ease-in-out;
  transform-origin: top center;
  position: absolute;
  top: 0;
  left: calc(50% - (75px/2));
}

.container.paused {
  animation-play-state: paused;
}

.bulb {
  z-index: 10;
  display: block;
  width: 75px;
  height: 75px;
  border-radius: 50%;
  position: absolute;
  top: 200px;
  left: calc(50% - (75px/2));
  background: #FFD700;
  box-shadow: 5px 5px 80px gold, 5px -5px 80px gold, -5px 5px 80px gold, -5px -5px 80px gold;
  cursor: pointer;
}
.bulb::before {
  content: "";
  position: absolute;
  width: 35px;
  height: 50px;
  background: black;
  bottom: 100%;
  left: calc(50% - (35px/2));
  z-index: -1;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}
.bulb::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 250px;
  background: black;
  bottom: 100%;
  left: calc(50% - 5px);
  z-index: -1;
}
.bulb .filaments {
  display: block;
  position: absolute;
  width: 2px;
  height: 30px;
  background: black;
  top: 2px;
  left: 28px;
  box-shadow: 17px 0 black;
  opacity: 0;
}
.bulb .filaments::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 4px;
  background: black;
  width: 2px;
  height: 12px;
  display: block;
  box-shadow: 4.5px 0 black, 9px 0 black;
}

.bulb.off {
  background: transparent;
  box-shadow: none;
  border: 1px solid black;
}

.filaments.off {
  opacity: 1;
}

@keyframes bulb-swing {
  0% {
    transform: rotate(-10deg);
  }
  50% {
    transform: rotate(10deg);
  }
  100% {
    transform: rotate(-10deg);
  }
}
.floor {
  position: absolute;
  background: #000c19;
  height: 200px;
  width: 100%;
  bottom: 0;
  left: 0;
}
.floor .shadow {
  position: absolute;
  background: #524c11;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  top: calc(50% - 25px);
  left: calc(50% - 25px);
  box-shadow: 20px 20px 100px gold, -20px 20px 100px gold, 20px -20px 100px gold, -20px -20px 100px gold;
  animation: shadow-swing 3s infinite ease-in-out;
}

.shadow.off {
  background: #000c19;
  box-shadow: none;
}

@keyframes shadow-swing {
  0% {
    transform: translateX(100px);
  }
  50% {
    transform: translateX(-100px);
  }
  100% {
    transform: translateX(100px);
  }
}

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