body {
  height: 100vh;
  margin: 0;
  padding: 0;
  background: radial-gradient(white, floralwhite);
  font-family: sans;
  align-content: center;
}

main {
  max-width: 720px;
  padding: 1rem;
  margin: auto;
}

h1 {
  text-align: center;
}

ul {
  list-style-type: none;
  padding: 0;
  text-align: center;
}

a {
  color: inherit;
}

i {
  margin: 5px;
}

label {
  margin-bottom: 2px;
  cursor: pointer;
}

.button {
  background-color: #b00;
  border-radius: 30px;
  box-shadow: 0 0 10px darkgrey;
  color: #eee;
  font-size: 1.3em;
  text-decoration: none;
  padding: 10px 15px;
  cursor: pointer;
}