html {
  align-items: center;
  background-color: #333;
  background: url('https://images.unsplash.com/photo-1657031497223-41da5405ef17?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=2070&q=80')
    no-repeat center center fixed;
  display: flex;
  flex-direction: column;
  font-size: 10px;
  height: 100vh;
  justify-content: center;
}

* {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
}

body {
  -webkit-box-shadow: 0px 0px 14px 5px rgba(0, 0, 0, 0.32);
  background-color: #0007;
  border-radius: 2rem;
  box-shadow: 0px 0px 14px 5px rgba(0, 0, 0, 0.32);
  padding: 3rem;
}

header {
  text-align: center;
}

header h1 {
  color: #f90;
  font-size: 4rem;
}

header h2 {
  color: #eee;
  margin-top: 1.5rem;
}

main {
  border-bottom: 0.1rem solid #eee;
  border-top: 0.1rem solid #eee;
  margin: 3rem 0;
  padding: 3rem 0;
}

main ul {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  justify-content: center;
}

main ul li {
  list-style-type: none;
  text-align: center;
}

main ul li a {
  background-color: #f90;
  border-radius: 1rem;
  color: #333;
  font-size: 1.3rem;
  padding: 1rem 3rem;
  text-decoration: none;
  transition: 0.3s;
}

main ul a:hover {
  background-color: #e80;
  color: #222;
  cursor: pointer;
}

main ul a:active {
  background-color: #eee;
}

main ul a:focus {
  border-color: #e80;
}

footer {
  align-items: center;
  color: #fff5;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

footer a {
  color: #f905;
  text-decoration: none;
  transition: 0.3s;
}

footer a:hover {
  color: #f90f;
}