body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding-left: 270px;
  line-height: 1.5;
}

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 250px;
  height: 100%;
  background-color: #f4f4f4;
  border-right: 2px solid #ccc;
  overflow-y: auto; 
}

#navbar header {
  font-size: 1.5em;
  font-weight: bold;
  padding: 15px;
  text-align: center;
}

.nav-link {
  display: block;
  padding: 10px 15px;
  text-decoration: none;
  color: #333;
  border-top: 1px solid #ccc;
}

.nav-link:hover {
  background-color: #ddd;
}

.main-section {
  padding: 20px;
  margin-bottom: 30px;
}

header {
  font-size: 1.8em;
  margin-bottom: 10px;
  font-weight: bold;
}

code {
  background-color: #f0f0f0;
  padding: 2px 5px;
  border-radius: 4px;
  display: block;
  white-space: pre-wrap;
  margin: 10px 0;
}

@media (max-width: 800px) {
  #navbar {
    position: relative;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 2px solid #ccc;
  }
  
  body {
    padding-left: 0;
  }
}