.card {
  box-shadow: 0 4px 8px 0 rgba(170, 170, 170, 0.2);
  transition: 0.3s;
  border-radius: 5px;
  background-color: #fff;
  display: block;
  margin: 5em 1em 2em 1em;
  border: 1px solid #c2bfbf;
}
.card-choice {
  box-shadow: 0 4px 8px 0 rgba(170, 170, 170, 0.2);
  border-radius: 5px;
  background-color: #fff;
  display: block;
  margin: 2em 1em 2em 1em;
  border: 1px solid #c2bfbf;
  height: 150px;
}
.number {
  display: block;
  color: #000000;
  font-size: 24px;
}
span:not(.number) {
  display: block;
  font-size: 0.99em;
  color: #9f9d9d;
}
.style {
  display: inline;
}
#btn {
  background-color: #fff;
  border: 1px solid #c2bfbf;
  border-radius: 5px;
  margin: 1em 1em 2em 1em;
  padding: 10px 5px 10px 5px;
}
#btn:hover {
  border-color: #363535;
  border: 2px solid #363535;
  cursor: pointer;
}