splay: block;
  content: "";
  background-color: gold;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  position: absolute;
  top: 100%;
  transform: translateX(-40%);
  transition: 0.2s linear 0.1s;
  z-index: 1;
}
.button:hover {
  box-shadow: 0px 0px 20px gold;
}
.button:hover::after {
  top: -50%;
}
.button:hover span {
  color: black;
  letter-spacing: 4px;
}

</style>
    