body {
  background: #000;
  color: #fff;
  text-align: center;
  height: 90vh;
  margin: 0;
  display: flex;
  align-items: center;
}

body * {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  text-decoration: none;
}

.content {
  margin: 0 auto;
  padding: 0 20px;
}

.icon {
  width: 100px;
  height: 100px;
}

p {
  opacity: 0.7;
  line-height: 1.3em;
}

.button {
  color: #fff;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 14px 42px;
  margin: 1em 0;
  display: inline-block;
  transition: .2s;
}

.button:hover {
  color: #000;
  background: #FFF;
}

.star {
  position: absolute;
  right: 20px;
  bottom: 20px;
  animation: spin 10s infinite linear;
}

.star a {
  color: #9B3ADC;
  font-size: 1.4em;
  text-decoration: none;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}