body {
  background-color: wheat;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-size: 20px;
}

header {
  top: 0;
  width: 100%;
  padding-block: 2px;
  text-align: center;
  background-color: antiquewhite;
}

nav {
  top: 0;
  width: 100%;
  padding-block: 2px;
  text-align: center;
  background-color: antiquewhite;
  cursor: default;
  position: sticky;
  border-bottom: solid peru;
}


div {
  border: solid peru;

  max-width: 600px;
  margin-inline: auto;
  margin-block: 16px;
  text-align: center;
  background-color: antiquewhite;
  padding: 6px;
}

h1 {
  font-size: 32px;
  font-weight: bold;
  margin: 5px;
}

h2 {
  font-size: 28px;
  font-weight: bold;
  margin: 5px;
}
p {
  margin: 5px;
}

article {
  text-align: justify;
  text-indent: 12px;
  margin: 12px;

}

li {
  margin: 12px;
}

footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  border-top: solid peru;
  text-align: center;
  background-color: antiquewhite;
}

a:visited, a:link {
  color: orangered;
  text-decoration: none;
}

a:hover, a:active {
  text-decoration: underline;
}

button {
  color: orangered;
  font-weight: bold;
  background-color: wheat;
  border: solid peru;
  min-width: 160px;
  padding: 6px;
  margin-block: 2px;
  text-align: center;
  display: inline-block;
  cursor: default;
}

button:hover {
  cursor: pointer;
  background-color: tan;
}

button:disabled {
  color: black;
  cursor: default;
  background-color: wheat;
}