akatom牛人大佬：

1. Centered with .justify-content-center:
3. Active
4. Link
5. Link
6. Disabled
7. Copy
8. <ul class="nav justify-content-center">
9.   <li class="nav-item">
10.     <a class="nav-link active" href="#">Active</a>
11.   </li>
12.   <li class="nav-item">
13.     <a class="nav-link" href="#">Link</a>
14.   </li>
15.   <li class="nav-item">
16.     <a class="nav-link" href="#">Link</a>
17.   </li>
18.   <li class="nav-item">
19.     <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
20.   </li>
21. </ul>

为啥我导航条里这几个没有居中显示呢

akatom牛人大佬：
冷场？？？？