我怎样才能让这个boostrap5.3下拉菜单居中并占据页面的所有宽度？

问题描述 投票：0回答：1

我需要将下拉菜单设置为此页面，没有内容，占据页面的所有宽度。我还需要将菜单的所有“lorem”链接放在导航栏中的中央。我无法编辑引导类，所以我无法做到这一点。我该如何解决这个问题？ （请全页打开，我不知道为什么代码被剪断后悬停菜单不起作用）

.navbar-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar a:hover {
  text-decoration: underline;
}

.navbar-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dropdown-menu {
  font-size: 0.8rem;
  left: 0;
  border: none;
  text-align: center;
  position: absolute;
  border-radius: 0;
  box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
  display: grid;
  grid-template-columns: auto auto auto auto auto;
  visibility: hidden;
  min-width: 100%;
  z-index: 999;
}

.dropdown:hover .dropdown-menu {
  visibility: visible;
}

.dropdown-menu.show {
  display: flex;
}

.dropdown-menu a:hover {
  color: darkgrey;
  text-decoration: none;
}

.dropdown-menu li:first-child a {
  color: darkgrey;
  padding: 20px 0;
}
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <div class="container-fluid">
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
    <div class="collapse navbar-collapse" id="navbarSupportedContent">
      <ul class="navbar-nav me-auto mb-2 mb-lg-0">
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="" role="button" data-bs-toggle="dropdown" aria-expanded="false">Lorem</a>
          <div class="dropdown-menu">

            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
          </div>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="" role="button" data-bs-toggle="dropdown" aria-expanded="false">Lorem</a>
          <div class="dropdown-menu">
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
          </div>
        </li>

        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="" role="button" data-bs-toggle="dropdown" aria-expanded="false">Lorem</a>
          <div class="dropdown-menu">
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
          </div>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="" role="button" data-bs-toggle="dropdown" aria-expanded="false">Lorem</a>
          <div class="dropdown-menu">
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
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              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
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            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
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            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
          </div>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="" role="button" data-bs-toggle="dropdown" aria-expanded="false">Lorem</a>
          <div class="dropdown-menu">
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
          </div>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="" role="button" data-bs-toggle="dropdown" aria-expanded="false">Lorem</a>
          <div class="dropdown-menu">
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
            <ul>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
              <li><a class="dropdown-item" href="">Lorem Ipsum</a></li>
            </ul>
          </div>
        </li>
      </ul>
    </div>
  </div>
</nav>

javascript html css bootstrap-4 bootstrap-5
1个回答
0
投票

js代码添加srcipt标签了吗？

要使用 bootstap，您需要 popperjs 和 bootstrap js 代码。

<script src="https://cdn.jsdelivr.net/npm/@popperjs/[email protected]/dist/umd/popper.min.js" integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js" integrity="sha384-0pUGZvbkm6XF6gxjEnlmuGrJXVbNuzT9qBBavbLwCsOGabYfZo0T0to5eqruptLy" crossorigin="anonymous"></script>

参考： https://getbootstrap.com/docs/5.3/getting-started/download/#cdn-via-jsdelivr

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