abody {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}





@media (max-width: 768px) {
  nav ul {
    overflow: auto;
  }

  nav ul li {
    float: none;
    display: block;
    text-align: center;
  }

  nav ul li a {
    padding: 10px;
    display: inline-block;
  }
}



nav {
  background-color: #333;
}

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

nav ul li {
  float: left;
}

nav ul li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 20px;
  text-decoration: none;
}

nav ul li a:hover {
  background-color: #555;
}