body
{
  height: 100vh;
  margin: 0;
  background-color: #B68EFE;
  color: #624B8A;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.wavywillow
{
  animation: upDown 1.5s alternate infinite ease-in-out;
}

@keyframes upDown {
  to { transform: translatey(-50px);}
}