我一直试图在Bootstrap 5中获得一个navbar与死中心链接和左品牌标志工作。然而，使用Bootstrap 5中的flexbox选项，我似乎只能在flex容器中获得中段链接。但是，折叠行为按预期工作。

<nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top navbar-default">
  <div class="container-fluid">
    <a href="#" class="navbar-brand me-auto">
      <img style="height: 45px" src="https://lanman2018.ieee-lanman.org/files/2016/01/sample-logo@2x.png">
    </a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar2">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="navbar-collapse collapse justify-content-center" id="navbar">
      <ul class="navbar-nav">
        <li class="nav-item">
          <a class="nav-link" href="#">page link/a>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#" id="dropdown" aria-expanded="false">dropdown</a>
          <ul class="dropdown-menu" aria-labelledby="dropdown">
            <li>
              <a class="dropdown-item" href="#">2nd Page</a>
            </li>
            <li>
              <a class="dropdown-item" href="#"> This is a really long page nameS</a>
            </li>
            <li>
              <a class="dropdown-item" href="#">still a long name</a>
            </li>
          </ul>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">about us</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Contact Page</a>
        </li>
      </ul>
    </div>
  </div>
</nav>

如果我将徽标位置设置为绝对，我得到的大部分是我正在寻找的，但当折叠导航按钮坐在徽标下面。我可能遗漏了一些明显的东西，因为我通常不做前端操作。

这里有一个指向jsfiddle的链接，其中有我一直在处理的两个解决方案https://jsfiddle.net/0s24hlmf/

顺晟科技：

如果您使用…

<nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top navbar-default">
  <div class="container-fluid">
    <a href="#" class="navbar-brand me-auto">
      <img style="height: 45px" src="https://lanman2018.ieee-lanman.org/files/2016/01/sample-logo@2x.png">
    </a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar2">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="navbar-collapse collapse justify-content-center" id="navbar">
      <ul class="navbar-nav">
        <li class="nav-item">
          <a class="nav-link" href="#">page link/a>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#" id="dropdown" aria-expanded="false">dropdown</a>
          <ul class="dropdown-menu" aria-labelledby="dropdown">
            <li>
              <a class="dropdown-item" href="#">2nd Page</a>
            </li>
            <li>
              <a class="dropdown-item" href="#"> This is a really long page nameS</a>
            </li>
            <li>
              <a class="dropdown-item" href="#">still a long name</a>
            </li>
          </ul>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">about us</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Contact Page</a>
        </li>
      </ul>
    </div>
  </div>
</nav>

demo