body {
  background-color: black;
  overflow: hidden;
}
main {
  height: 100%;
  width: 100%;
  padding: 1rem;
  background-color: black;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}
div {
  animation: explode 1.3s ease-out forwards;
}
button {
  background-color: rgb(4, 161, 205);
  border: none;
  padding: 10px 18px;
  cursor: pointer;
  border-radius: 5px;
  position: relative;
  z-index: 9;
}
@keyframes explode {
  0% {
    transform: scale(0.9) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: scale(2) rotate(200deg);
    opacity: 0.3;
  }
}