.btn {
  padding: 1rem 2rem;
  font-weight: 700;
  background: rgb(255, 255, 255);
  color: blueviolet;
  cursor: pointer;
  border-radius: 0.5rem;
  border-bottom: 2px solid blueviolet;
  border-right: 2px solid blueviolet;
  border-top: 2px solid white;
  border-left: 2px solid white;
  transition-duration: 1s;
  transition-property: border-top, border-left, border-bottom, border-right,
    box-shadow;
}

.btn:hover {
  border-top: 2px solid blueviolet;
  border-left: 2px solid blueviolet;
  border-bottom: 2px solid rgb(238, 103, 238);
  border-right: 2px solid rgb(238, 103, 238);
  box-shadow: rgba(240, 46, 170, 0.4) 5px 5px, rgba(240, 46, 170, 0.3) 10px 10px,
    rgba(240, 46, 170, 0.2) 15px 15px;
}