使用此代码将项目向右移动。

<div class="collapse navbar-collapse justify-content-end">

在bootstrap 4.0.0-beta上。2、这里列出的答案没有一个对我有用。最后，Bootstrap网站给了我解决方案，不是通过它的文档，而是通过它的页面源代码……

Getbootstrap.com通过以下类的帮助将他们的右导航条导航向右对齐:ml-md-auto。

关于Bootstrap 4

如果你想把品牌对齐到左边，把所有导航栏项对齐到右边，把默认的mr-auto更改为ml-auto

<ul class="navbar-nav ml-auto">

boostrap 4的变化很小。 要对齐导航栏右侧，你只需要做两个改变。 它们是:

在navbar-nav类添加w-100作为navbar-nav w-100使宽度为100 在nav-item下拉类中添加ml-auto作为nav-item下拉列表ml-auto使左侧空白为auto。

如果你不明白，请参考我附上的图片。

CodePen链接

完整源代码

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="collapse navbar-collapse" id="navbarNavDropdown">
    <ul class="navbar-nav w-100">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item dropdown ml-auto">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown link
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
    </ul>  
  </div>
</nav>

对于Bootstrap 4 beta，元素对齐到右侧的示例导航栏是:

<div id="app" class="container">
  <nav class="navbar navbar-expand-md navbar-light bg-faded">
    <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <a class="navbar-brand" href="#">Navbar</a>
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricingg</a>
      </li>
    </ul>
    <ul class="navbar-nav">
      <li class="nav-item">
        <a class="nav-link" href="{{ url('/login') }}">Login</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="{{ url('/register') }}">Register</a>
      </li>
    </ul>
  </nav>
</div>

我是栈溢出的新手，也是前端开发的新手。这对我来说很管用。所以我不希望显示列表项。

.hidden { display:none; } #loginButton{ margin-right:2px; } <nav class="navbar navbar-toggleable-md navbar-light bg-faded fixed-top"> <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <a class="navbar-brand" href="#">NavBar</a> <div class="collapse navbar-collapse" id="navbarSupportedContent"> <ul class="navbar-nav mr-auto"> <li class="nav-item active hidden"> <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a> </li> <li class="nav-item hidden"> <a class="nav-link" href="#">Link</a> </li> <li class="nav-item hidden"> <a class="nav-link disabled" href="#">Disabled</a> </li> </ul> <form class="form-inline my-2 my-lg-0"> <button class="btn btn-outline-success my-2 my-sm-0" type="submit" id="loginButton"><a href="#">Log In</a></button> <button class="btn btn-outline-success my-2 my-sm-0" type="submit"><a href="#">Register</a></button> </form> </div> </nav>