body {
  font-family: Arial, sans-serif;
  background-color: #1a1a1a;
  color: #f0f0f0;
  margin: 0;
  padding: 0;
}
header {
  text-align: center;
  background-color: #000;
  padding: 20px;
}
header img {
  max-width: 100%;
  height: auto;
}
main {
  padding: 20px;
}
section {
  margin-bottom: 20px;
}
a {
  color: #4da6ff;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
footer {
  text-align: center;
  padding: 10px;
  background-color: #000;
  position: fixed;
  width: 100%;
  bottom: 0;
}