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HTML

              
                <div></div>
              
            
!

CSS

              
                /* https://medium.com/@ConceptsApp/the-transparency-of-a-glass-sphere-a7ef59bb9bfe */
html, body {
  margin: 0;
  height: 100%;
  background-color: rgb(148,147,143);
}

div {
  top: 50%;
  left: 50%;
  width: 200px;
  height: 300px;
  border-radius: 50% 50% 30% 30%;
  /* border: 1px solid black; */
  position: absolute;
  transform: translate(-120%, 0%) rotateZ(45deg);
  background-image: 
    radial-gradient(
      ellipse at top center,
      rgba(255,255,255,1),
      transparent 50%
    );
  background-size: 150px 300px;
  background-position: 10px 0px;
  background-repeat: no-repeat;
  box-shadow:
    -5px -60px 20px 5px rgba(0,0,0,0.4),
    inset 0px 50px 20px -15px rgba(0,0,0,0.4);
}

div::before {
  content: '';
  top: -250px;
  left: -130px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  /* border: 1px solid black; */
  position: absolute;
  transform: rotate(-45deg);
  background-color: rgb(148,147,143);
  background-image:
    radial-gradient(
      circle,
      rgba(255,255,255,0.3),
      rgba(255,255,255,0.1) 25%,
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(210, 210, 210, 0.7),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(210, 210, 210, 0.7),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(255,255,255,0.7),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(255,255,255,0.7),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(255,255,255,0.4),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(255,255,255,0.5),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(255,255,255,0.7),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(255,255,255,0.5),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(0,0,0,0.1),
      transparent 60%
    ),
    radial-gradient(
      ellipse,
      rgba(0,0,0,0.2),
      transparent 60%
    ),
    radial-gradient(
      ellipse,
      rgba(57, 57, 57, 0.5),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(57, 57, 57, 0.5),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(109, 109, 109, 0.1),
      transparent 50%
    ),
    radial-gradient(
      ellipse,
      rgba(121, 121, 121, 0.2),
      transparent 50%
    );
  background-size:
    /* shine */
    100px 100px,
    /* light */
    100px 100px,
    100px 100px,
    100px 100px,
    100px 100px,
    200px 200px,
    200px 200px,
    200px 200px,
    200px 200px,
    /* dark */
    100px 100px,
    120px 120px,
    120px 120px,
    120px 120px,
    120px 120px,
    120px 120px;
  background-position: 
    /* shine */
    58% -5%,
    /* light small */
    -15% 90%,
    -5% 100%,
    5% 110%,
    20% 120%,
    /* light big */
    -70% 170%,
    -35% 210%,
    -10% 215%,
    80% 225%,
    /* dark */
    -35% 25%,
    -10% -30%,
    135% 15%,
    80% -45%,
    15% 40%,
    75% 80%;
  background-repeat: no-repeat;
  box-shadow: 
    inset -5px 5px 8px 0px rgba(0,0,0,0.15),
    inset -30px 15px 20px -10px rgba(0,0,0,0.2),
    inset -10px 10px 30px 5px rgba(0,0,0,0.2),
    inset -10px 10px 10px -5px rgba(0,0,0,0.1),
    inset 12px -20px 5px -21px rgba(255,255,255,0.8),
    inset 10px -30px 20px -20px rgba(255,255,255,0.5),
    inset 50px -50px 20px -10px rgba(108, 108, 108, 0.15);
}

div::after {
  content: '';
  top: -240px;
  left: -40px;
  width: 60px;
  height: 80px;
  border-radius: 40px 0 0 0 / 15px 0 0 0;
  position: absolute;
  /* border: 1px solid black; */
  transform: perspective(100px) scaleY(0.5) rotateX(-5deg) rotateY(-15deg) rotateZ(25deg);
  background-color: white;
  background-image: 
    linear-gradient(
      to right,
      transparent 20%,
      rgba(255,255,255,0.5) 50%,
      transparent 100%
    ),
    linear-gradient(
      to top,
      transparent 70%,
      rgba(0,0,0,0.4) 80%,
      rgba(0,0,0,0.4) 80%,
      transparent 90%
    );
  filter: blur(.5px);
}


@media only screen and (max-width: 800px) {
  div {
    transform: scale(0.5) translate(-140%, 0%) rotateZ(45deg);
  }
}
              
            
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JS

              
                
              
            
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