<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title></title>
<style>
.dropdown:hover .dropdown-menu {
display: block;
margin-top: 0;
}
</style>
</head>
<body>
<nav class="navbar navbar-dark bg-dark navbar-expand-sm">
<a href="" class="navbar-brand">MySite</a>
<button class="navbar-toggler" data-toggle="collapse" data-target="#navbar">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbar">
<ul class="navbar-nav nav-items ml-auto">
<li class="nav-item">
<a href="" class="nav-link">Главная</a>
</li>
<li class="nav-item dropdown">
<a href="" class="nav-link dropdown-toggle" data-toggle="dropdown">О нас</a>
<div class="dropdown-menu dropdown-menu-right">
<a href="" class="dropdown-item">Blog</a>
<a href="" class="dropdown-item">YT</a>
<a href="" class="dropdown-item">VK</a>
</div>
</li>
</ul>
</div>
</nav>
<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>
</body>
</html>
我有一个 .dropdown 元素,其默认点击行为设置为 (:active)。我这样做是为了使列表在悬停在此元素上时也会退出。
问题:我怎样才能让元素只有在悬停在它上面时才会退出,即 这样 :active 伪类就不会触发?
扔掉 jquery 和 click 处理程序,就是这样。