form {
  /* background-color: salmon; */
  /* how to center a div */
  max-width: 350px;
  margin: 0 auto;
}

form > * {
  display: block;
}

form > input {
  width: 95%;
}

form > textarea {
  width: 95%;
  height: 100px;
}

body {
  font-family: Arial, Helvetica, sans-serif;
}

input,
textarea {
  font-family: Arial, Helvetica, sans-serif;
}