body {
  background-color: #000;
  background-image: url('https://files.catbox.moe/sla8ak.jpeg');
  font-family: 'Courier New', Courier, monospace;
  color: #2A2B2A;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 90px; padding-top:70px;
}

/* The Unified Main Container */
#main-container {
  overflow: hidden;
  box-shadow: 0 0 20px #fff;
  text-align:center;
  margin:auto;
  width:1080px;
  padding:15px;
  background-image: url('https://files.catbox.moe/n6uc9l.png');
  border:ridge 4px #FFFAFB;
  outline: solid 4px black;
  border-radius:180px 6px 200px 6px;

}
/*---------------------- header---------------------- */
h1 {
  background-image: url('https://files.catbox.moe/od6j0u.png');
  color: white;
  font-size: 30px;
  width:1080px;
  padding:15px;
  border:ridge 4px #FFFAFB;
  outline: solid 4px black;
  border-radius:180px 6px 200px 6px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 90px; padding-top:70px;
}


/* nav on the left */
ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  width: 200px;
  background-color: #f1f1f1;
}

li a {
  display: block;
  color: black;
  padding: 8px 16px;
  text-decoration: none;
}

/* Change the link and background color on hover */
li a:hover {
  background-color: #555555;
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  #layout-wrapper { flex-direction: column; }
  #sidebar { border-right: none; border-bottom: 2px solid #9d4edd; }
}