body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

header {
  background-color: #333;
  color: #fff;
  padding: 1rem;
}

header h1 {
  margin: 0;
}

nav ul {
  list-style-type: none;
  padding: 0;
}

nav ul li {
  display: inline;
  margin-right: 10px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
}

main {
  padding: 2rem;
}

.button {
  display: inline-block;
  background-color: #333;
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 5px;
}

.app-list {
  list-style-type: none;
  padding: 0;
}

.app-list li {
  margin-bottom: 20px;
}

footer {
  background-color: #333;
  color: #fff;
  text-align: center;
  padding: 1rem;
  position: absolute;
  bottom: 0;
  width: 100%;
}