HTMLify

body {
  background-color: #151515;
  height: 100vh;
  margin: 0;
  overflow: hidden;
}

@keyframes rotate {
  from {
    rotate: 0deg;
  }

  50% {
    scale: 1 1.5;
  }

  to {
    rotate: 360deg;
  }
}

#blob {
  background-color: #fff;
  height: 34vmax;
  aspect-ratio: 1;
  position: absolute;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  border-radius: 50%;
  background: linear-gradient(to right, #06ffac, #fa36b8);
  animation: rotate 20s infinite;
  opacity: 0.8;
}

#blur {
  height: 100%;
  width: 100%;
  position: absolute;
  z-index: 2;
  backdrop-filter: blur(10vmax);
}