h1 {
  color: green;
  font-size: 60px;
}

header, footer {
  border: solid 3px green;
  background-color: beige;
  width: 90%;
  max-width: 420px;
  margin: 0 auto;
  text-align: center;
}

section {
  border: solid 3px brown;
  background-color: beige;
  width: 90%;
  max-width: 420px;
  margin: 0 auto;
  text-align: center;
}

table {
  border-collapse: collapse;
  margin: 0 auto 40px auto;
  text-align: center;
}

td {
  border: solid 3px brown;
  padding: 10px;
}

a {
  color: black;
  text-decoration: none;
}
a:visited {
  color: black;
}
a:hover {
  text-decoration: underline;
}