body {
  font-family: sans-serif;
  background-color: #f9f9e3;
  text-align: center;
  padding: 2em;
}
.container {
  max-width: 700px;
  margin: auto;
  background: white;
  padding: 2em;
  border-radius: 10px;
  box-shadow: 0 0 12px gray;
}
.button {
  display: inline-block;
  padding: 1.2em 2.2em;
  background-color: #5a8f29;
  color: white;
  text-decoration: none;
  border-radius: 10px;
  font-size: 1.3em;
  margin-top: 1em;
}