body {
  background: #120424;
  color: #e0e0ff;
  font-family: 'Courier New', monospace;
  margin: 0;
  padding: 0;
}
#container {
  width: 800px;
  margin: 20px auto;
  background: #1a0033;
  border: 3px dotted #ff66cc;
  padding: 15px;
}
#header {
  background: linear-gradient(90deg,#ff66cc,#6644ff);
  text-align: center;
  padding: 10px;
  border-bottom: 2px solid #99ddff;
}
#nav {
  background: #330044;
  padding: 8px;
  text-align: center;
  margin-top:10px;
}
#nav a {
  color: #99ddff;
  text-decoration: none;
  margin: 0 10px;
  font-weight: bold;
}
#nav a:hover { color: #ffcc33; }
#content {
  background: #250055;
  padding: 20px;
  margin-top: 10px;
  border: 1px solid #99ddff;
}
#footer {
  text-align: center;
  font-size: 12px;
  color: #8888aa;
  padding: 10px;
  margin-top: 15px;
  border-top: 2px solid #ff66cc;
}
img { border: 2px dashed #ff99ee; }