导航栏中的 Bootstrap 4 分隔符

Question

我正在尝试将分隔符放在navbar之间nav-items，但我不知道如何在nav-item.

我的第二个问题是，分隔符出现在toggle-navbar（navbar折叠时）中，我试图删除它们，但没有成功。

如果有人知道创建分隔符的更好方法，我将不胜感激。

这是我的代码：

.navbar-nav > li > a::after {
    content: "|";
    padding: 0 5px
}

<div class="collapse navbar-collapse" id="navbarResponsive">
  <!--
  1) collapse - class dedicate to a given alement
  2) navbar-collapse:  show elements to bootstrap which belong to navbar, then use function - collapse
  -->
  <ul class="navbar-nav ml-auto">
    <li class="nav-item active">
      <a class="nav-link" href="#">O nas</a>
    </li>
    <li class="nav-item active">
      <a class="nav-link" href="#">Cennik</a>
    </li>
    <li class="nav-item active">
      <a class="nav-link" href="#">Us?ugi</a>
    </li>
    <li class="nav-item active">
      <a class="nav-link" href="#">Rejestracja</a>
    </li>
    <li class="nav-item active">
      <a class="nav-link" href="#">Porady</a>
    </li>
  </ul>
</div>

Answer 1

也许border-right您nav-items可以使用CSS 样式来完成这项工作，您可以在特定break-point（MD是下一个示例中选择的断点）上禁用它们。

.border-md-right {
  border-right: 1px solid silver;
}

@media (max-width: 768px) {

  .border-md-right {
    border-right: none;
  }

}

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>

<nav class="navbar navbar-expand-md navbar-dark bg-dark">
  <a class="navbar-brand" href="#">Navbar</a>

  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarResponsive">
    <ul class="navbar-nav ml-auto">
      <li class="nav-item active border-md-right">
        <a class="nav-link" href="#">O nas</a>
      </li>
      <li class="nav-item active border-md-right">
        <a class="nav-link" href="#">Cennik</a>
      </li>
      <li class="nav-item active border-md-right">
        <a class="nav-link" href="#">Us?ugi</a>
      </li>
      <li class="nav-item active border-md-right">
        <a class="nav-link" href="#">Rejestracja</a>
      </li>
      <li class="nav-item active">
        <a class="nav-link" href="#">Porady</a>
      </li>
    </ul>
  </div>
  
</nav>

Answer 2

@Shidersz 解决方案应该有效。如果您不想在每个li. 如果您有一个动态菜单，并且必须将此类添加到除最后一个元素之外的每个元素，则可能会更困难一些！

.navbar-nav .nav-item:not(:last-child) {
   border-right: 1px solid silver;
}

@media (max-width: 768px) {
  .navbar-nav .nav-item:not(:last-child) {
    border-right: none;
  }
}

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>

<nav class="navbar navbar-expand-md navbar-dark bg-dark">
  <a class="navbar-brand" href="#">Navbar</a>

  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarResponsive">
    <ul class="navbar-nav ml-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">O nas</a>
      </li>
      <li class="nav-item active">
        <a class="nav-link" href="#">Cennik</a>
      </li>
      <li class="nav-item active">
        <a class="nav-link" href="#">Us?ugi</a>
      </li>
      <li class="nav-item active">
        <a class="nav-link" href="#">Rejestracja</a>
      </li>
      <li class="nav-item active">
        <a class="nav-link" href="#">Porady</a>
      </li>
    </ul>
  </div>
  
</nav>