header {
  text-align: center;
}

body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
}

h1 {
  font-size: 2em;
  margin-top: 0;
}

p {
  margin-bottom: 1em;
}

section {
  margin-bottom: 2em;
}

header {
  background-color: #000;
  color: #fff;
}
body {
  background-color: #fff;
  font-family: sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #000;
  color: #fff;
  text-align: center;
  padding: 20px;
}

main {
  margin: 0 auto;
  width: 500px;
}

section {
  margin-bottom: 20px;
}

h1 {
  font-size: 2em;
  margin-top: 0;
}

p {
  margin-bottom: 1em;
}

form {
  margin: 0 auto;
  width: 500px;
}

input {
  width: 100%;
  border: 1px solid #ccc;
  margin-bottom: 10px;
}

textarea {
  width: 100%;
  height: 100px;
  border: 1px solid #ccc;
  margin-bottom: 10px;
}

input[type="submit"] {
  background-color: #000;
  color: #fff;
  font-size: 1em;
  border: none;
  padding: 10px;
}

input[type="submit"]:hover {
  background-color: #ccc;
  color: #000;
}



footer {
  background-color: #ccc;
  text-align: center;
}