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HTML

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About the <head>

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                .paper_man_wrapper
  .paper_man
    .paper_man_body.part
      .paper_man_head.part
      .paper_man_arm.left
        .paper_man_arm_1.part
          .paper_man_arm_2.part
            .paper_man_arm_hand.part
      .paper_man_arm.right
        .paper_man_arm_1.part
          .paper_man_arm_2.part
            .paper_man_arm_hand.part
      .paper_man_leg.left
        .paper_man_leg_1.part
          .paper_man_leg_2.part
            .paper_man_leg_foot.part
      .paper_man_leg.right
        .paper_man_leg_1.part
          .paper_man_leg_2.part
            .paper_man_leg_foot.part
!

CSS 

              
                body {
  background: #fff;
  height: 100vh;
  overflow: hidden;
  display: flex;
  font-family: 'Anton', sans-serif;
  justify-content: center;
  align-items: center;
  perspective: 500px;
}

* {
  transform-style: preserve-3d;
}

div {
  position: absolute;
  transform-style: preserve-3d;
}

.paper_man_wrapper {
  animation: cameraY 7000ms linear infinite;
}
.paper_man {
  top: -100px;
  left: -50px;
  animation: jump 250ms -110ms ease-in-out infinite alternate;

  .part {
    background: rgba(0, 0, 0, 1);
    // backface-visibility: hidden;
    &::before {
      content: '';
      position: absolute;
      width: 100%;
      height: 100%;
      background: rgba(100, 100, 100, 1);
      transform: translateZ(-1px);
      // backface-visibility: hidden;
    }
  }
  &_body {
    transform-origin: 50% 100%;
    transform: rotateX(-20deg);
    width: 60px;
    height: 100px;
    animation: shake4 2000ms -100ms ease-in-out infinite;
  }
  &_head {
    transform-origin: 50% 100%;
    top: -40px;
    left: calc(50% - 20px);
    width: 40px;
    height: 40px;
    transform: rotateX(-10deg);
    animation: shake4 1000ms -800ms ease-in-out infinite;
  }
  &_arm {
    &.left {
      transform-origin: 0 0;
      right: 0px;
      animation: shake1 1000ms -400ms ease-in-out infinite;
    }
    &.right {
      transform-origin: 100% 0;
      left: -20px;
      animation: shake1 1000ms -900ms ease-in-out infinite;
    }
    &_1 {
      transform-origin: 50% 0;
      width: 20px;
      height: 50px;
    }
    &_2 {
      transform-origin: 50% 0;
      bottom: -50px;
      width: 20px;
      height: 50px;
      .left & {
        animation: shake3 1000ms -800ms ease-in-out infinite;
      }
      .right & {
        animation: shake3 1000ms -300ms ease-in-out infinite;
      }
    }
    &_hand {
      transform-origin: 50% 0;
      bottom: -15px;
      width: 20px;
      height: 15px;
      .left & {
        animation: shake3 1000ms -200ms ease-in-out infinite;
      }
      .right & {
        animation: shake3 1000ms -700ms ease-in-out infinite;
      }
    }
  }
  &_leg {
    transform-origin: 50% 0;
    top: 100px;
    &.left {
      right: 30px;
      animation: shake1 1000ms ease-in-out infinite;
    }
    &.right {
      left: 0;
      animation: shake1 1000ms -500ms ease-in-out infinite;
    }
    &_1 {
      transform-origin: 50% 0;
      width: 30px;
      height: 50px;
    }
    &_2 {
      transform-origin: 50% 0;
      bottom: -40px;
      width: 30px;
      height: 40px;
      .left & {
        animation: shake2 1000ms -600ms ease-in-out infinite;
      }
      .right & {
        animation: shake2 1000ms -100ms ease-in-out infinite;
      }
    }
    &_foot {
      transform-origin: 50% 0;
      bottom: -20px;
      width: 30px;
      height: 20px;
      .left & {
        animation: shake3 1000ms -400ms ease-in-out infinite;
      }
      .right & {
        animation: shake3 1000ms -900ms ease-in-out infinite;
      }
    }
  }
}

@keyframes shake1 {
  0% {
    transform: rotateX(80deg);
  }
  50% {
    transform: rotateX(-80deg);
  }
  100% {
    transform: rotateX(80deg);
  }
}

@keyframes shake2 {
  0% {
    transform: rotateX(0deg);
  }
  50% {
    transform: rotateX(-100deg);
  }
  100% {
    transform: rotateX(0deg);
  }
}

@keyframes shake3 {
  0% {
    transform: rotateX(10deg);
  }
  50% {
    transform: rotateX(120deg);
  }
  100% {
    transform: rotateX(10deg);
  }
}

@keyframes shake4 {
  0% {
    transform: rotateX(-30deg);
  }
  50% {
    transform: rotateX(-10deg);
  }
  100% {
    transform: rotateX(-30deg);
  }
}

@keyframes cameraY {
  0% {
    transform: rotateY(0deg);
  }
  100% {
    transform: rotateY(360deg);
  }
}

@keyframes cameraX {
  0% {
    transform: rotateX(-50deg);
  }
  100% {
    transform: rotateX(50deg);
  }
}

@keyframes jump {
  0% {
    transform: rotateX(10deg) translateY(0);
  }
  100% {
    transform: rotateX(20deg) translateY(-30px);
  }
}
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