body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

header {
  background-color: #f4f4f4;
  padding: 1em;
  text-align: center;
}

form {
  width: 100%;
  max-width: 600px;
  margin: 2em auto;
}

label {
  display: block;
  margin: 0.5em 0;
}

input, textarea {
  width: 100%;
  padding: 0.5em;
  margin-bottom: 1em;
}

button {
  display: inline-block;
  padding: 0.5em 1em;
  background-color: #333;
  color: #fff;
  cursor: pointer;
}

footer {
  background-color: #333;
  color: #fff;
  text-align: center;
  padding: 1em;
}