CodePen Embed - Molten menu

<!DOCTYPE html>
<html>
  <body>
    <div id="div1">
      <div id="rock1"></div>
      <div id="rock2"></div>
      <div id="rock3"></div>
      <div id="rock4"></div>
      <div id="rock5"></div>
      <div id="rock6"></div>
      <div id="rock7"></div>
      <div id="rock8"></div>
      <div id="diva1">
        <img id="img1" src="https://image.flaticon.com/icons/png/512/78/78075.png">
        <div id="divaa1">
          <input id="btna1" type="button" value="Theme">
          <input id="btna2" type="button" value="Profile">
          <input id="btna3" type="button" value="More">
          <img id="img2" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Windows_Settings_app_icon.png/768px-Windows_Settings_app_icon.png">
          <div id="divaaa1"></div>
        </div>
        <div id="divaa2">
          <img id="img3" src="https://openclipart.org/image/2400px/svg_to_png/399/molumen-phone-icon.png">
          <div id="divaaa2"></div>
          <input id="btnb1" type="button" value="Phone">
          <input id="btnb2" type="button" value="Call">
        </div>
        <div id="divaa3">
          <input id="btnc1" type="button" value="About">
          <input id="btnc2" type="button" value="Creator" onclick="location.href="https://codepen.io/bowties/"">
          <input id="btnc3" type="button" value="More">
          <img id="img3" src="https://image.flaticon.com/icons/svg/32/32175.svg">
          <div id="divaaa3"></div>
          <div id="divaaa4"></div>
        </div>
      </div>
    </div>
    </body>
  </html>

body{
  background:rgb(0, 45, 60);
}
#rock1{
  position:absolute;
  left:-30px;
  top:0px;
  width:40px;
  height:40px;
  transform:rotate(45deg);
  animation:b 6s infinite;
}
#rock2{
  position:absolute;
  left:200px;
  top:-25px;
  width:40px;
  height:40px;
  transform:rotate(45deg);
  animation:a 6s infinite;
}
#rock3{
  position:absolute;
  left:585px;
  top:5px;
  width:40px;
  height:40px;
  transform:rotate(45deg);
  animation:a 6s infinite;
}
#rock4{
  position:absolute;
  left:385px;
  top:90px;
  width:40px;
  height:40px;
  transform:rotate(45deg);
  animation:b 6s infinite;
}
#rock5{
  position:absolute;
  left:60px;
  top:140px;
  width:25px;
  height:25px;
  transform:rotate(45deg);
  animation:a 6s infinite;
}
#rock6{
  position:absolute;
  left:500px;
  top:-25px;
  width:25px;
  height:25px;
  transform:rotate(45deg);
  animation:a 6s infinite;
}
#rock7{
  position:absolute;
  left:60px;
  top:-55px;
  width:25px;
  height:25px;
  transform:rotate(45deg);
  animation:b 6s infinite;
}
#rock8{
  position:absolute;
  left:530px;
  top:130px;
  width:25px;
  height:25px;
  transform:rotate(45deg);
  animation:b 6s infinite;
}
@keyframes a{
  0%{
    background:transparent;
  }
  50%{
    background:darkorange;
  }
  100%{
    background:transparent;
  }
}
@keyframes b{
  0%{
    background:darkorange;
  }
  50%{
    background:transparent;
  }
  100%{
    background:darkorange;
  }
}
#div1{
  position:absolute;
  left:calc(50% - 300px);
  top:calc(50% - 150px);
  width:600px;
  height:100px;
  border:20px solid rgb(60, 60, 60);
  border-radius:100px;
}
#diva1{
  position:absolute;
  width:590px;
  height:90px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#img1{
  position:absolute;
  left:15px;
  top:15px;
  width:60px;
}
#img2{
  position:absolute;
  left:10px;
  top:10px;
  width:60px;
}
#img3{
  position:absolute;
  left:10px;
  top:10px;
  width:60px;
}
#divaa1{
  position:absolute;
  left:150px;
  width:80px;
  height:80px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#divaa1:hover{
  height:250px;
}
#divaa1:hover > #divaaa1{
  height:180px;
  border:5px solid orange;
}
#divaaa1{
  position:absolute;
  top:-5px;
  left:75px;
  width:40px;
  height:80px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#divaa2{
  position:absolute;
  left:300px;
  width:80px;
  height:80px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#divaa2:hover{
  height:200px;
}
#divaa2:hover > #divaaa2{
  height:230px;
}
#divaaa2{
  position:absolute;
  top:-5px;
  left:-25px;
  width:25px;
  height:80px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#divaa3{
  position:absolute;
  left:450px;
  width:80px;
  height:80px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#divaa3:hover{
  height:260px;
}
#divaa3:hover > #divaaa3{
  height:200px;
}
#divaa3:hover > #divaaa4{
  height:140px;
}
#divaaa3{
  position:absolute;
  top:-5px;
  left:-50px;
  width:40px;
  height:80px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#divaaa4{
  position:absolute;
  top:-5px;
  left:75px;
  width:25px;
  height:80px;
  border:5px solid orange;
  border-radius:100px;
  background:orange;
  transition:.6s;
}
#btna1{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa1:hover > #btna1{
  top:90px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}
#btna2{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa1:hover > #btna2{
  top:140px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}
#btna3{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa1:hover > #btna3{
  top:190px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}
#btnb1{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa2:hover > #btnb1{
  top:90px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}
#btnb2{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa2:hover > #btnb2{
  top:140px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}
#btnc1{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa3:hover > #btnc1{
  top:90px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}
#btnc2{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa3:hover > #btnc2{
  top:140px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}
#btnc3{
  position:absolute;
  top:0px;
  background:transparent;
  width:75px;
  color:transparent;
  padding-top:5px;
  padding-bottom:5px;
  font-family:Georgia, serif;
  font-size:15px;
  border:2.5px solid transparent;
  border-radius:100px;
  cursor:pointer;
  transition:.6s;
}
#divaa3:hover > #btnc3{
  top:190px;
  color:black;
  background:dimgrey;
  padding-bottom:5px;
}

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