css 3d牛顿摆

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html

css

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html

css

*, *::before, *::after {
  padding: 0;
  margin: 0 auto;
  box-sizing: border-box;
  transform-style: preserve-3d;
}

body {
  background-color: #111;
  color: #fff;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 50px;
  perspective: 800px;
  perspective-origin: center calc(50% - 2.4em);
  overflow: hidden;
}

.cradle {
  position: relative;
  -webkit-animation: rotate 60s infinite linear;
          animation: rotate 60s infinite linear;
}

@-webkit-keyframes rotate {
  to {
    transform: rotateY(360deg);
  }
}

@keyframes rotate {
  to {
    transform: rotateY(360deg);
  }
}
.floor {
  position: absolute;
  width: 20em;
  height: 20em;
  background-color: #fff;
  background-image: radial-gradient(#012a, #111 66%), url("https://www.jq22.com/tp/6375707044916395427488957.jpg");
  background-size: 20em, 10em;
  transform: translate(-50%, -50%) rotateX(90deg) translateZ(-3em);
}
.floor::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8.5em;
  height: 4.5em;
  background-color: #000;
  filter: blur(0.3em);
}

.wood {
  --width: 0;
  --height: 0;
  --depth: 0;
  position: absolute;
  top: 0;
  left: 0;
  width: var(--width);
  height: var(--height);
  transform: translate(-50%, -50%);
}
.wood.base {
  --width: 8em;
  --height: 1em;
  --depth: 4em;
  transform: translate(-50%, calc(-50% + 2.5em));
}
.wood.poll {
  --width: 0.25em;
  --height: 3em;
  --depth: 0.25em;
}
.wood.poll:nth-child(3) {
  transform: translate3d(calc(-50% + 3.5em), calc(-50% + 0.5em), 1.5em);
}
.wood.poll:nth-child(4) {
  transform: translate3d(calc(-50% + 3.5em), calc(-50% + 0.5em), -1.5em);
}
.wood.poll:nth-child(5) {
  transform: translate3d(calc(-50% + -3.5em), calc(-50% + 0.5em), 1.5em);
}
.wood.poll:nth-child(6) {
  transform: translate3d(calc(-50% + -3.5em), calc(-50% + 0.5em), -1.5em);
}
.wood.strecher {
  --width: 8em;
  --height: 0.25em;
  --depth: 1em;
}
.wood.strecher:nth-child(7) {
  transform: translate3d(-50%, calc(-50% - 1em), 1.5em);
}
.wood.strecher:nth-child(8) {
  transform: translate3d(-50%, calc(-50% - 1em), -1.5em);
}
.wood.strecher .dots::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 76% 50%, #777 0px, #7770 2px), radial-gradient(circle at 63% 50%, #777 0px, #7770 2px), radial-gradient(circle at 50% 50%, #777 0px, #7770 2px), radial-gradient(circle at 37% 50%, #777 0px, #7770 2px), radial-gradient(circle at 24% 50%, #777 0px, #7770 2px);
}
.wood > * {
  position: absolute;
  box-shadow: 0 0 1em #0007 inset;
  background-size: 5em;
  background-image: url("https://assets.codepen.io/1948355/wood04.png");
}
.wood > .top {
  width: var(--width);
  height: var(--depth);
  transform: translateY(-50%) rotateX(90deg);
  background-color: #6f463f;
}
.wood > .left {
  width: var(--depth);
  height: var(--height);
  transform: translateX(-50%) rotateY(90deg);
  background-color: #5f3c35;
}
.wood > .right {
  width: var(--depth);
  height: var(--height);
  right: 0;
  transform: translateX(50%) rotateY(90deg);
  background-color: #1d1211;
}
.wood > .front {
  width: var(--width);
  height: var(--height);
  transform: translateZ(calc(var(--depth) / 2));
  background-color: #3E2723;
}
.wood > .back {
  width: var(--width);
  height: var(--height);
  transform: translateZ(calc(var(--depth) / -2));
  background-color: #3E2723;
}

.ballPlate {
  position: absolute;
  top: -1em;
  width: 2em;
  height: 3em;
  transform: translate(-50%, 0%) rotateY(90deg);
  transform-origin: top;
}
.ballPlate:nth-child(9) {
  left: -2.05em;
  -webkit-animation: ballPlateStart 3s infinite;
          animation: ballPlateStart 3s infinite;
}
.ballPlate:nth-child(9) .ballWrapper {
  -webkit-animation: ballWrapperStart 3s infinite;
          animation: ballWrapperStart 3s infinite;
}
.ballPlate:nth-child(9) .ball {
  background-position-y: 0%;
}
.ballPlate:nth-child(10) {
  left: -1.025em;
  -webkit-animation: ballPlateSwing 3s linear infinite;
          animation: ballPlateSwing 3s linear infinite;
}
.ballPlate:nth-child(10) .ballWrapper {
  -webkit-animation: ballWrapperSwing 3s linear infinite;
          animation: ballWrapperSwing 3s linear infinite;
}
.ballPlate:nth-child(10) .ball {
  background-position-y: 25%;
}
.ballPlate:nth-child(11) {
  left: 0;
  -webkit-animation: ballPlateSwing 3s linear infinite;
          animation: ballPlateSwing 3s linear infinite;
}
.ballPlate:nth-child(11) .ballWrapper {
  -webkit-animation: ballWrapperSwing 3s linear infinite;
          animation: ballWrapperSwing 3s linear infinite;
}
.ballPlate:nth-child(11) .ball {
  background-position-y: 50%;
}
.ballPlate:nth-child(12) {
  left: 1.025em;
  -webkit-animation: ballPlateSwing 3s linear infinite;
          animation: ballPlateSwing 3s linear infinite;
}
.ballPlate:nth-child(12) .ballWrapper {
  -webkit-animation: ballWrapperSwing 3s linear infinite;
          animation: ballWrapperSwing 3s linear infinite;
}
.ballPlate:nth-child(12) .ball {
  background-position-y: 75%;
}
.ballPlate:nth-child(13) {
  left: 2.05em;
  -webkit-animation: ballPlateEnd 3s infinite;
          animation: ballPlateEnd 3s infinite;
}
.ballPlate:nth-child(13) .ballWrapper {
  -webkit-animation: ballWrapperEnd 3s infinite;
          animation: ballWrapperEnd 3s infinite;
}
.ballPlate:nth-child(13) .ball {
  background-position-y: 100%;
}
@-webkit-keyframes ballPlateSwing {
  0%, 100% {
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(5deg);
  }
  50% {
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-5deg);
  }
}
@keyframes ballPlateSwing {
  0%, 100% {
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(5deg);
  }
  50% {
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-5deg);
  }
}
@-webkit-keyframes ballPlateStart {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(5deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-5deg);
  }
  75% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-80deg);
  }
}
@keyframes ballPlateStart {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(5deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-5deg);
  }
  75% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-80deg);
  }
}
@-webkit-keyframes ballPlateEnd {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(5deg);
  }
  25% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(80deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-5deg);
  }
}
@keyframes ballPlateEnd {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(5deg);
  }
  25% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(80deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: translate(-50%, 0%) rotateY(90deg) rotateX(-5deg);
  }
}
@-webkit-keyframes ballWrapperSwing {
  0%, 100% {
    transform: rotateY(90deg) rotate(-5deg);
  }
  50% {
    transform: rotateY(90deg) rotate(5deg);
  }
}
@keyframes ballWrapperSwing {
  0%, 100% {
    transform: rotateY(90deg) rotate(-5deg);
  }
  50% {
    transform: rotateY(90deg) rotate(5deg);
  }
}
@-webkit-keyframes ballWrapperStart {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(-5deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(5deg);
  }
  75% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: rotateY(90deg) rotate(80deg);
  }
}
@keyframes ballWrapperStart {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(-5deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(5deg);
  }
  75% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: rotateY(90deg) rotate(80deg);
  }
}
@-webkit-keyframes ballWrapperEnd {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(-5deg);
  }
  25% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: rotateY(90deg) rotate(-80deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(5deg);
  }
}
@keyframes ballWrapperEnd {
  0%, 100% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(-5deg);
  }
  25% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    transform: rotateY(90deg) rotate(-80deg);
  }
  50% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    transform: rotateY(90deg) rotate(5deg);
  }
}
.ballPlate .ballWrapper {
  position: absolute;
  bottom: 0.1em;
  left: calc(50% - 0.5em);
  width: 1em;
  height: 1em;
}
.ballPlate .ball {
  position: absolute;
  width: 1em;
  height: 1em;
  background-color: #fff;
  border-radius: 50%;
  background-image: radial-gradient(circle at top, #fff, #678a, #000), url("https://www.jq22.com/tp/6375707044916395427488957.jpg");
  background-size: 1em, 5em;
  box-shadow: 0 0 10px #000a inset;
  animation: backPos 120s infinite linear, rotate 60s infinite linear reverse;
}
@-webkit-keyframes backPos {
  from {
    background-position-x: center, 5em;
  }
  to {
    background-position-x: center, 0;
  }
}
@keyframes backPos {
  from {
    background-position-x: center, 5em;
  }
  to {
    background-position-x: center, 0;
  }
}
.ballPlate .line {
  position: absolute;
  top: 0;
  width: 2px;
  height: 2.15em;
  background-color: #fff7;
  transform-origin: top;
}
.ballPlate .line::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #fff7;
  transform: rotateY(90deg);
}
.ballPlate .line:nth-child(2) {
  transform: translateX(-1px) rotate(-20deg);
}
.ballPlate .line:nth-child(3) {
  right: 0;
  transform: translateX(1px) rotate(20deg);
}

.shadow {
  position: absolute;
  top: 50%;
  width: 3em;
  height: 3em;
  background-image: radial-gradient(#0006, #0000 50%);
}
.shadow:nth-child(1) {
  -webkit-animation: shadowSwing 3s ease-out infinite, shadowStart 3s ease-out infinite;
          animation: shadowSwing 3s ease-out infinite, shadowStart 3s ease-out infinite;
}
.shadow:nth-child(2) {
  left: 2.975em;
  -webkit-animation: shadowSwing 3s linear infinite;
          animation: shadowSwing 3s linear infinite;
}
.shadow:nth-child(3) {
  left: 4em;
  -webkit-animation: shadowSwing 3s linear infinite;
          animation: shadowSwing 3s linear infinite;
}
.shadow:nth-child(4) {
  left: 5.025em;
  -webkit-animation: shadowSwing 3s linear infinite;
          animation: shadowSwing 3s linear infinite;
}
.shadow:nth-child(5) {
  -webkit-animation: shadowSwing 3s ease-out infinite, shadowEnd 3s ease-out infinite;
          animation: shadowSwing 3s ease-out infinite, shadowEnd 3s ease-out infinite;
}
@-webkit-keyframes shadowSwing {
  0%, 100% {
    transform: translate(-50%, -50%) rotateX(0deg) translateZ(0em) translateX(10px);
  }
  50% {
    transform: translate(-50%, -50%) rotateX(0deg) translateZ(0em) translateX(-10px);
  }
}
@keyframes shadowSwing {
  0%, 100% {
    transform: translate(-50%, -50%) rotateX(0deg) translateZ(0em) translateX(10px);
  }
  50% {
    transform: translate(-50%, -50%) rotateX(0deg) translateZ(0em) translateX(-10px);
  }
}
@-webkit-keyframes shadowStart {
  0%, 50%, 100% {
    left: 1.95em;
    opacity: 1;
  }
  75% {
    left: 0;
    opacity: -0.5;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}
@keyframes shadowStart {
  0%, 50%, 100% {
    left: 1.95em;
    opacity: 1;
  }
  75% {
    left: 0;
    opacity: -0.5;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}
@-webkit-keyframes shadowEnd {
  0%, 50%, 100% {
    left: 6.05em;
    opacity: 1;
  }
  25% {
    left: 8em;
    opacity: -0.5;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}
@keyframes shadowEnd {
  0%, 50%, 100% {
    left: 6.05em;
    opacity: 1;
  }
  25% {
    left: 8em;
    opacity: -0.5;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}

.twitterLink {
  font-size: 24px;
}

JavaScript

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