body {
    display: flex;
    align-items: center;
    justify-content: center;
    background: tomato;
}

body, html {
    height: 100vh;
    overflow: hidden;
    transition: all 2s ease-in-out;
}

button {
    background: black;
    padding: 1rem 2rem;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    border-radius: 5px;
}

.hide {
    display: none;
}


@keyframes black-hole {
    0% {
      transform: scale(1) translate3d(75px, 0, 0);
    }
    50% {
      transform: scale(4) translate3d(55px, 0, 0);
    }
    100% {
      transform: scale(1) translate3d(75px, 0, 0);
    }
  }
  @keyframes black-hole-rotate {
    0% {
      transform: translate(-50%, -50%) rotate(0deg) skew(3deg);
    }
    50% {
      transform: translate(-50%, -50%) rotate(180deg) skew(0deg);
    }
    100% {
      transform: translate(-50%, -50%) rotate(360deg) skew(3deg);
    }
  }
  .black-hole {
    backface-visibility: hidden;
    z-index: 20;
    position: relative;
    overflow: hidden;
    border-radius: 50%;
    width: 250px;
    height: 250px;
    padding: 0;
    box-shadow: 0 0 30px 0 #0000ff inset;
  }
  .black-hole .gooey-container {
    overflow: hidden;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(0deg) skew(5deg);
    filter: url(#gooey-plasma-2);
    width: 300px;
    height: 300px;
    padding: 0;
    margin: 0;
    box-shadow: 0 0 0 27px #9900ff inset;
    animation: black-hole-rotate 3.2s ease infinite;
  }
  .black-hole .gooey-container .bubble {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    text-align: right;
  }
  .black-hole .gooey-container .bubble:before {
    content: "";
    display: inline-block;
    background: #ff4081;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    transform: scale(1) translate3d(75px, 0, 0);
    box-shadow: 0 0 10px 0 #0000ff inset, 0 0 10px 0 #0000ff inset;
  }
  .black-hole .gooey-container .bubble:nth-child(1) {
    transform: translate(-50%, -50%) rotate(60deg);
  }
  .black-hole .gooey-container .bubble:nth-child(1):before {
    animation: black-hole 1s ease 0.5s infinite;
  }
  .black-hole .gooey-container .bubble:nth-child(2) {
    transform: translate(-50%, -50%) rotate(120deg);
  }
  .black-hole .gooey-container .bubble:nth-child(2):before {
    animation: black-hole 2s ease 1s infinite;
  }
  .black-hole .gooey-container .bubble:nth-child(3) {
    transform: translate(-50%, -50%) rotate(180deg);
  }
  .black-hole .gooey-container .bubble:nth-child(3):before {
    animation: black-hole 3s ease 1.5s infinite;
  }
  .black-hole .gooey-container .bubble:nth-child(4) {
    transform: translate(-50%, -50%) rotate(240deg);
  }
  .black-hole .gooey-container .bubble:nth-child(4):before {
    animation: black-hole 4s ease 2s infinite;
  }
  .black-hole .gooey-container .bubble:nth-child(5) {
    transform: translate(-50%, -50%) rotate(300deg);
  }
  .black-hole .gooey-container .bubble:nth-child(5):before {
    animation: black-hole 5s ease 2.5s infinite;
  }
  .black-hole .gooey-container .bubble:nth-child(6) {
    transform: translate(-50%, -50%) rotate(360deg);
  }
  .black-hole .gooey-container .bubble:nth-child(6):before {
    animation: black-hole 6s ease 3s infinite;
  }