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HTML 

              
                <div class="container">
    <div class="core-shadow">
      <div class="shadow"></div>
    </div>
    <div class="eight-ball">
      <div class="circle">
        <div class="display">
          <div class="triangle-wrap">
            <div class="triangle t4"></div>
            <div class="triangle t3"></div>
            <div class="triangle t2"></div>
            <div class="triangle t1">
              <span class="fortune"></span>
            </div>
          </div>
        </div>
      </div>
      <div class="num-eight">8</div>
      <div class="highlight"></div>
    </div>
    <div class="border-shadow"></div>
  </div>
!

CSS 

              
                @import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Graduate&display=swap');

@mixin mainFlex {
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes triangleFloat {
  25%      { transform: rotateY(10deg) rotateZ(-3deg); }
  50%     { transform: rotateY(0) rotateZ(0); }
  75%     { transform: rotateY(-10deg) rotateZ(3deg); }
  100%     { transform: rotateY(0) rotateZ(0); }
}

* {
  margin: 0;
  padding: 0;
  font-family: 'Roboto', sans-serif;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  user-select: none;
}

body {
  @include mainFlex();
  background: #808080;
  height: 100vh;
}

.core-shadow, .shadow, .eight-ball, .circle, 
.display, .triangle, .fortune, .num-eight, .highlight, .border-shadow {
  position: absolute;
}

.core-shadow, .shadow, .eight-ball, 
.circle, .display, .num-eight, .highlight, .border-shadow {
  border-radius: 50%;
}

.container {
  @include mainFlex();
  width: 500px;
  height: 500px;
  position: relative;
  .core-shadow {
    @include mainFlex();
    width: 320px;
    height: 40px;
    bottom: 35px;
    background: rgba(0,0,0,0.4);
    filter: blur(8px);
    .shadow {
      width: 240px;
      height: 15px;
      background: rgba(0,0,0,0.9);
      filter: blur(8px);
    }  
  }
  .eight-ball {
    @include mainFlex();
    position: relative;
    overflow: hidden;
    mask-image: radial-gradient(white, black);
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    width: 400px;
    height: 400px;
    background: #222;
    box-shadow:
      inset 15px 15px 30px #000,
      inset -20px -20px 40px #000,
      inset -25px 25px 25px rgba(255,255,255,0.2),
      inset 25px -25px 50px rgba(255,255,255,0.3);
    &:hover {
      cursor: pointer;
    }
    .circle {
      @include mainFlex();
      width: 220px;
      height: 220px;
      background: #111;
      box-shadow: 
        inset 0 -3px 3px rgba(255,255,255,0.3),
        -2px -1px 5px rgba(255,255,255,0.2),
        2px -2px 3px #000;
      transform: translateX(-400px) scaleX(0);
      .display {
        @include mainFlex();
        width: 200px;
        height: 200px;
        background: #020214;
        border: 5px solid #000;
        box-sizing: border-box;
        box-shadow: 
          inset 0 10px 10px #000,
          inset 0 -3px 5px rgba(255,255,255,0.15),
          -1px -2px 3px rgba(255,255,255,0.1);
        .triangle {
          @include mainFlex();
          border-top: 110px solid rgba(64,0,255,0.5);
          border-left: 68px solid transparent;
          border-right: 68px solid transparent;
          width: 0;
          height: 0;
          filter: blur(2px);
          animation: triangleFloat 8s linear infinite;
        }
        .t4 {
          bottom: 29px;
          left: 26px;
        }
        .t3 {
          bottom: 22px;
          left: 21px;
        }
        .t2 {
          bottom: 22px;
          left: 31px;
        }
        .t1 {
          bottom: 24px;
          left: 26px;
          filter: none;
          .fortune {
            width: 60px;
            top: -87px;
            text-align: center;
          }
        } 
      }
    }
    .num-eight {
      @include mainFlex();
      font-family: 'Graduate', sans-serif;
      font-size: 10rem;
      color: #222;
      width: 170px;
      height: 170px;
      background: #f5efdf;
      z-index: 2;
      opacity: 0.7;
    }
    .highlight {
      width: 120px;
      height: 70px;
      background: rgba(255,255,255,0.2);
      top: 50px;
      left: 55px;
      transform: rotate(-35deg);
      filter: blur(25px);
    }
  }
  .border-shadow {
    z-index: 3;
    width: 400px;
    height: 400px;
    box-shadow: inset 0 0 10px rgba(0,0,0,1);
    &:hover {
      cursor: pointer;
    }
  }
  @media screen and (max-width: 767px) {
    transform: scale(0.75);
  }
}
!

JS 

              
                document.addEventListener('DOMContentLoaded', () => {

  const eightBall = document.querySelector('.eight-ball'),
        numEight = document.querySelector('.num-eight'),
        display = document.querySelector('.circle'),
        triangles = document.querySelector('.triangle-wrap'),
        fortune = document.querySelector('.fortune'),
        borderShadow = document.querySelector('.border-shadow'),
        coreShadow = document.querySelector('.core-shadow');

  triangles.style.opacity = '0';

  const answers = [
    'It is certain',
    'It is decidedly so',
    'Without a doubt',
    'Yes definitely',
    'You may rely on it',
    'As I see it, yes',
    'Most likely',
    'Outlook good',
    'Yes',
    'Signs point to yes',
    'Reply hazy try again',
    'Ask again later',
    'Better not tell you now',
    'Cannot predict now',
    'Concentrate and ask again',
    'Do not count on it',
    'My reply is no',
    'My sources say no',
    'Outlook not so good',
    'Very doubtful'
  ]; 

  let nPosX = 1,
      nScale = 1,
      dPosX = -400,
      dScale = 0.5;

  const rotate = () => {
    numEight.style.transform = `translateX(${nPosX}px) scaleX(${nScale})`;

    nPosX++;
    nScale -= 0.00248756219; // this num is a product of trial and error
    if (nScale === 0.5) {
      numEight.style.tranform = 'scaleX(0)';
    }

    dPosX++;
    if (dPosX < -200) {
      display.style.transform = `translateX(${dPosX}px) scaleX(0)`;
    } else {
      dScale += 0.00248756219;
      display.style.transform = `translateX(${dPosX}px) scaleX(${dScale})`;
    }
    
    if (dPosX < 0) {
      setTimeout(() => rotate(), 10);
    } else {
      borderShadow.style.display = 'none';
      fortune.textContent = 'Ask a question';
      setTimeout(() => fadeIn(), 1000);
      setTimeout(() => fadeOut(), 4000);
    }
  }

  const shake = () => {
    setTimeout(() => {
      eightBall.style.transform = 'translateY(-40px)';
      coreShadow.style.transform = 'scale(0.85)';
    }, 100);
    setTimeout(() => {
      eightBall.style.transform = 'translateX(-40px) translateY(-40px)';
      coreShadow.style.transform = 'scale(0.85) translateX(-40px)';
    }, 400);
    setTimeout(() => {
      eightBall.style.transform = 'translateX(0) translateY(-40px)';
      coreShadow.style.transform = 'scale(0.85) translateX(0)';
    }, 500);
    setTimeout(() => {
      eightBall.style.transform = 'translateX(40px) translateY(-40px)';
      coreShadow.style.transform = 'scale(0.85) translateX(40px)';
    }, 600);
    setTimeout(() => {
      eightBall.style.transform = 'translateX(0) translateY(-40px)';
      coreShadow.style.transform = 'scale(0.85) translateX(0)';
    }, 700);
    setTimeout(() => {
      eightBall.style.transform = 'translateY(0)';
      coreShadow.style.transform = 'scale(1)';
    }, 1000);
  }

  let opacity = 0;

  const fadeIn = () => {
    if (opacity < 1) {
      opacity += .1;
      setTimeout(() => fadeIn(), 100);
    }
    triangles.style.opacity = opacity;
  }

  const fadeOut = () => {
    if (opacity > 0) {
      opacity -= .1;
      setTimeout(() => fadeOut(), 100);
    }
    triangles.style.opacity = opacity;
  }

  const askMagicEightBall = () => {
    const random = Math.floor(Math.random() * answers.length);
    fortune.textContent = answers[random];
    shake();
    setTimeout(() => fadeIn(), 1000);
    setTimeout(() => fadeOut(), 4000);
  }

  borderShadow.addEventListener('click', () => rotate());

  eightBall.addEventListener('click', () => opacity > 0 ? false : askMagicEightBall() );

});
!
999px

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