Animation de notification de blob CSS

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HTML

CSS

*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: #121212;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
}
.codigo {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background: #272822;
  color: #F8F8F2;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 18px;
  padding: 20px;
  border-radius: 8px;
  white-space: pre-line;
  text-align: left;
  line-height: 1.6;
  max-height: 50%;
  width: 100%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.selector       { color: #F92672; }
.property       { color: #66D9EF; } 
.value-number   { color: #AE81FF; } 
.value-string   { color: #E6DB74; } 
.value-color    { color: #A6E22E; } 
.brace          { color: #F8F8F2; } 
.comment        { color: #75715E; } 
.function       { color: #A6E22E; }
.animation-container {
  position: absolute;
  top: 75%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 50%;
  overflow: hidden;
  background:transparent;
}

.blob {
  position: relative;
  width: 100px;
  height: 100px;
  background: linear-gradient(to bottom, #12FF00, #FFD700);
  border-radius: 50%;
  opacity: 0;
  animation: pulse 3s linear infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.9); /* Diminui ligeiramente no início */
    opacity: 0; /* Inicia transparente */
  }
  50% {
    transform: scale(1.1);  /* Aumenta para o pico maior */
    opacity: 1; /* Torna-se completamente opaca no pico */
  }
  100% {
    transform: scale(0.9); /* Diminui ligeiramente para o fim */
    opacity: 0; /* Volta a ficar transparente */
  }
}

.notification {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(120, 179, 255, 0.8); /*  Blur dá sensação de overlay */
  backdrop-filter: blur(10px); /* Blur sobre a notificação */
  display: flex;
  align-items: center; 
  justify-content: center;
  animation: fadeOut 2s forwards; /* Animação de desaparecimento */
}

@keyframes fadeOut {
  0% { opacity: 1; }
  100% { opacity: 0; }
}