.booking {
  max-width: 600px;
  margin: auto;
}
.booking h2 {
  text-align: center;
}
.booking span {
  color: red;
}
.booking div {
  display: flex;
  flex-wrap: wrap;
}
.booking .personal-info div, .booking .travel-info div {
  width: 100%;
  padding: 0 1rem 1rem;
}
.booking .personal-info div input, .booking .personal-info div select, .booking .travel-info div input, .booking .travel-info div select {
  width: 100%;
  outline: none;
  display: block;
  padding: 0.5rem 0.5rem;
  font-size: 1rem;
  border: 1px solid #3e3d3c;
  margin: 0.5rem auto;
  font-family: "Open Sans", Arial, sans-serif;
  cursor: pointer;
}
.booking .extra-info div {
  width: 100%;
}
.booking .extra-info div textarea {
  width: 100%;
}
.booking button {
  display: block;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  text-transform: uppercase;
  border: 1px solid #3e3d3c;
  margin: 0.5rem auto;
  font-family: "Open Sans", Arial, sans-serif;
  cursor: pointer;
}
.booking button:hover {
  color: white;
  background: #222222;
}