#card {
  border: 2px solid #545454;
  width: 90vw;
  height: 35vw;
  max-height: 40vh;
  margin-right: auto;
  margin-left: auto;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;

  transition-duration: .5s;
  transition-property: transform;
  transition-timing-function: ease-in;
}

#card span {
  font-size: 3rem;
  color: #696969;
}