[分享]css中导航图标怎么分三栏排版

<nav>
  <ul>
    <li><a href="#"><i class="icon1"></i>Page 1</a></li>
    <li><a href="#"><i class="icon2"></i>Page 2</a></li>
    <li><a href="#"><i class="icon3"></i>Page 3</a></li>
    <li><a href="#"><i class="icon4"></i>Page 4</a></li>
    <li><a href="#"><i class="icon5"></i>Page 5</a></li>
    <li><a href="#"><i class="icon6"></i>Page 6</a></li>
  </ul>
</nav> 

nav {
  display: flex;
  justify-content: space-between;
  height: 50px;
  background: #333;
} 

li a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 5px 10px;
  color: #fff;
  text-decoration: none;
}

li a i {
  font-size: 24px;
  margin-bottom: 5px;
}

li a:hover {
  background: #666;
}

li a:hover i {
  color: #ff0;
} 

@media (max-width: 768px) {
  nav {
    flex-direction: column;
  }
}