body {
  background-color: #121212;
  color: #fff;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}
header, footer {
  text-align: center;
  padding: 20px;
}
.hero {
  text-align: center;
  padding: 50px 20px;
}
.hero a {
  display: inline-block;
  margin: 10px;
  padding: 10px 20px;
  background: #e91e63;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
}
.features, .screenshots, .contact {
  padding: 20px;
  text-align: center;
}
.features ul {
  list-style: none;
  padding: 0;
}
.features li {
  margin: 10px 0;
}