form div {
  margin-bottom: 10px;
}
#name,
#email,
#colour {
  padding: 10px;
  font-size: 1rem;
  border: 1px solid black;
  border-radius: 5px;
}

input[type="text"],
input[type="email"],
select {
  width: 100%;
  max-width: 400px;
  padding: 20px;
  box-sizing: border-box;
}

button {
  background-color: blue;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 1.5rem;
  cursor: pointer;
}