button {
    background-color: #4c90af;
    border: none;
    color: white;
    padding: 12px 20%;
    text-align: center;
    font: 1.2em "Fira Sans", sans-serif;
    font-size: 16px;
    display:block;
    margin: auto;
}

input[type=text], select {
  width: 50%;
  padding: 12px 20%;
  display:block;
  margin: auto;
  border-radius: 4px;
  box-sizing: border-box;
}

input[type=submit] {
  background-color: #4CAF50;
  border: none;
  color: white;
  padding: 12px 20%;
  text-align: center;
  font: 1.2em "Fira Sans", sans-serif;
  font-size: 16px;
  display:block;
  margin: auto;
}

label {
  font: 1.2em "Fira Sans", sans-serif;
  font-size: 16px;
  display:block;
  text-align: center;
}

h1 {
  font: 1.2em "Fira Sans", sans-serif;
  font-size: 24px;
  display:block;
  text-align: center;
}

h2 {
  font: 1.2em "Fira Sans", sans-serif;
  font-size: 17px;
  display:block;
  text-align: center;
}