如何更改 Bootstrap 5 下拉菜单悬停颜色？答案

【问题标题】：How to change Bootstrap 5 Dropdown menu hover color?如何更改 Bootstrap 5 下拉菜单悬停颜色？
【发布时间】：2022-01-27 01:35:50
【问题描述】：

我一直在尝试更改 Bootstrap 5 中下拉菜单的悬停颜色。但我不知道该怎么做。最后应该是这样的：

但目前看起来是这样的：

抱歉，忘记了代码：索引.html https://wtools.io/paste-code/b9c2

CSS： https://wtools.io/paste-code/b9c3

【问题讨论】：

你的代码在哪里？没有您的代码，我们无法提供帮助……
欢迎。请参阅How to Ask 并拨打tour。您的帖子需要改进。
你熟悉基本的 CSS 原则吗？
请提供足够的代码，以便其他人更好地理解或重现问题。

标签： html css web drop-down-menu bootstrap-5

【解决方案1】：

请在此处输入您的代码以获得帮助。

.dropdown a {
    display: block;
    padding: 0.5rem 1rem;
    color: black;
    text-decoration: none;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out;
    background-color: grey;
}

.dropdown a:hover {

    color: red;
    background-color:green;

}

<head>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar</a>
    <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">
          <a class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Link</a>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown
          </a>
          <ul class="dropdown-menu" aria-labelledby="navbarDropdown">
            <li><a class="dropdown-item" href="#">Action</a></li>
            <li><a class="dropdown-item" href="#">Another action</a></li>
            <li><hr class="dropdown-divider"></li>
            <li><a class="dropdown-item" href="#">Something else here</a></li>
          </ul>
        </li>
        <li class="nav-item">
          <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
        </li>
      </ul>
      <form class="d-flex">
        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
        <button class="btn btn-outline-success" type="submit">Search</button>
      </form>
    </div>
  </div>
</nav>
      <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>

</body>

【讨论】：