如何为 bootstrap 菜单启用悬停事件？

Question

我实现了一个 bootstrap 响应式丰富菜单，它运行良好。它适用于 Click 事件，我的问题是：如何将其更改为 Hover 事件？
所有 bootstrap 菜单都有这个问题。 bootstrap 对此没有任何支持？这是我使用的菜单： http://geedmo.github.io/yamm/ 我的问题解决了：

<style>
    li.dropdown:hover .dropdown-menu {
        display: block;
    }

    li.dropdown:hover .dropdown-toggle {
        color: #555;
        background-color: #e5e5e5;
    }
</style>

但是出现了一个新问题，当我缩小浏览器时，子菜单显示在菜单的末尾，这是不合适的:/

Answer 1

将此样式添加到您的页面。

<style>
    li.dropdown:hover .dropdown-menu{display:block}
    li.dropdown:hover .dropdown-toggle{color:#555; background-color:#e5e5e5}
</style>

第一个将在鼠标悬停时启用下拉菜单，第二个将更改菜单 header 颜色（为您的页面选择合适的颜色）。

Answer 2

试试这个 HTML、JS 和 CSS

CSS

$(document).ready(function() {
function navbarSubmenu(width) {
   if (width > 767) {
    $('.navbar-custom .navbar-nav > li.dropdown').hover(function() {
     var MenuLeftOffset  = $('.dropdown-menu', $(this)).offset().left;
     var Menu1LevelWidth = $('.dropdown-menu', $(this)).width();
     if (width - MenuLeftOffset < Menu1LevelWidth * 2) {
      $(this).children('.dropdown-menu').addClass('leftauto');
     } else {
      $(this).children('.dropdown-menu').removeClass('leftauto');
     }
     if ($('.dropdown', $(this)).length > 0) {
      var Menu2LevelWidth = $('.dropdown-menu', $(this)).width();
      if (width - MenuLeftOffset - Menu1LevelWidth < Menu2LevelWidth) {
       $(this).children('.dropdown-menu').addClass('left-side');
      } else {
       $(this).children('.dropdown-menu').removeClass('left-side');
      }
     }
    });
   }
  }
  });

.navbar-custom .dropdown-toggle:after {
position: absolute;
display: block;
right: 0;
top: 50%;
margin-top: -6px;
font: normal normal normal 14px/1 FontAwesome;
font-size: 9px;
content: "\f107";
text-rendering: auto;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}

@media (min-width: 768px) {
  .dropdown:hover .dropdown-menu{display:block}
  .navbar-custom .open > .dropdown-menu {
    visibility: visible;
    opacity: 1;
  } 
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<nav class="navbar navbar-custom navbar-transparent navbar-fixed-top one-page" role="navigation">
<div class="navbar-collapse collapse in" id="custom-collapse" aria-expanded="true">
   <ul class="nav navbar-nav navbar-right mnCh">

    
     <li class="current">
      <a href="/#" title="Home">Home</a>
      
     </li>
    
     <li class="link">
      <a href="/#" title="About us">About us</a>
      
     </li>
    
     <li class="link dropdown">
      <a href="/#" title="Collection" class="dropdown-toggle binded" data-toggle="dropdown">Collection</a>
      
       <ul class="dropdown-menu">
        
         <li><a href="/#">Collection 1</a></li>
        
         <li><a href="/#">Collection 2</a></li>
        
         <li><a href="/#">Collection 3</a></li>
        
         <li><a href="/#">Collection 4</a></li>
        
       </ul>
      
     </li> 
     <li class="link">
      <a href="/#" title="Store">Store</a>
      
     </li>
    
     <li class="link dropdown">
      <a href="/#" title="Press &amp; News" class="dropdown-toggle binded" data-toggle="dropdown">Press &amp; News</a>
      
       <ul class="dropdown-menu">
        
         <li><a href="/#">Press</a></li>
        
         <li><a href="/#">News</a></li>
        
       </ul>
      
     </li>
    
     <li class="link">
      <a href="/#" title="Download">Download</a>
      
     </li>
    

    <li class="dropdown">
     <a href="/#" class="dropdown-toggle binded" data-toggle="dropdown">
      Languages
     </a>
     <ul class="dropdown-menu">
       
      <li><a href="/en">English</a></li>
      <li><a href="/it">Italiano</a></li>
       
     </ul>
    </li>

   </ul>
  </div>
  </nav>

如何为 bootstrap 菜单启用悬停事件？

How enable Hover event for bootstrap menus?

javascript

css

hover

mousehover

drop-down-menu