Bootstrap 4 - 将导航栏项目向右对齐

Question

我是新手。我浏览了许多关于同一问题的帖子，并尝试了许多不同的方法，但都没有运气。我希望徽标位于左侧，导航链接与右侧对齐。到目前为止，我已经尝试过：

1.将 ul (.navbar-nav) 放置在具有 flex-direction: row-reverse 的 flex-container 类的 div 中；

2.在ul(.navbar-nav)中添加mr-auto类

3.在ul(.navbar-nav)中加入ml-auto类

<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">

<nav class="navbar fixed-top navbar-expand-lg navbar-light bg-light boxed" style="margin-top:30px;">
  <a class="navbar-brand logo" href="#"><img src="images/techno_vision_logo.png"></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 mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Eyeglasses <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Sunglasses</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Contact Lenses</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Services
        </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>
      <li class="nav-item">
        <a class="nav-link" href="#">Offers</a>
      </li>
    </ul>
  </div>
</nav>

网站链接：http://www.codelabfiles.cf/

Answer 1

您需要在<ul class="navbar-nav mr-auto"> 上更改您的班级名称。

您必须将类 mr-auto 替换为 ml-auto。

全屏查看下面的 sn-p。

<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">

<nav class="navbar fixed-top navbar-expand-lg navbar-light bg-light boxed" style="margin-top:30px;">
  <a class="navbar-brand logo" href="#"><img src="images/techno_vision_logo.png"></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 ml-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Eyeglasses <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Sunglasses</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Contact Lenses</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Services
        </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>
      <li class="nav-item">
        <a class="nav-link" href="#">Offers</a>
      </li>
    </ul>
  </div>
</nav>

我希望这个答案可以帮助您解决问题。

谢谢...

Answer 2

由于您的 div（id=navbarNavDropdown）正在使用 display flex，我添加了 justify-content: flex-end 以将项目向右对齐并将 mr-auto 删除到内部 ul 元素，现在它可以工作了。

Answer 3

如果你想从左边写一些间距，只需更改以下填充值。否则，将其保留为 0。您必须添加以下 CSS：-

.navber { padding: 0; }

然后你将不得不替换这一行：-

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

有：-

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

这将解决您的问题。