如何使twitter引导菜单下拉列表悬停，而不是单击 [英] How to make twitter bootstrap menu dropdown on hover rather than click

问题描述

我想让我的Bootstrap菜单自动下降到悬停，而不必单击菜单标题。我也想失去菜单标题旁边的小箭头。

I'd like to have my Bootstrap menu automatically drop down on hover, rather than having to click the menu title. I'd also like to lose the little arrows next to the menu titles.

推荐答案

我创建了一个纯粹的悬停下拉菜单在最新的（v2.0.2）引导框架上，支持多个子菜单，并认为我会将其发布给未来的用户：

I created a pure on hover dropdown menu based on the latest (v2.0.2) bootstrap framework that has support for multiple submenus and thought i'd post it for future users:

body {
  padding-top: 60px;
  padding-bottom: 40px;
}

.sidebar-nav {
  padding: 9px 0;
}

.dropdown-menu .sub-menu {
  left: 100%;
  position: absolute;
  top: 0;
  visibility: hidden;
  margin-top: -1px;
}

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

.dropdown:hover .dropdown-menu {
  display: block;
}

.nav-tabs .dropdown-menu,
.nav-pills .dropdown-menu,
.navbar .dropdown-menu {
  margin-top: 0;
}

.navbar .sub-menu:before {
  border-bottom: 7px solid transparent;
  border-left: none;
  border-right: 7px solid rgba(0, 0, 0, 0.2);
  border-top: 7px solid transparent;
  left: -7px;
  top: 10px;
}

.navbar .sub-menu:after {
  border-top: 6px solid transparent;
  border-left: none;
  border-right: 6px solid #fff;
  border-bottom: 6px solid transparent;
  left: 10px;
  top: 11px;
  left: -6px;
}

<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.2/css/bootstrap.min.css" rel="stylesheet" />

<div class="navbar navbar-fixed-top">
  <div class="navbar-inner">
    <div class="container-fluid">
      <a data-target=".nav-collapse" data-toggle="collapse" class="btn btn-navbar">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </a>
      <a href="#" class="brand">Project name</a>
      <div class="nav-collapse">
        <ul class="nav">
          <li class="active"><a href="#">Home</a></li>
          <li><a href="#">Link</a></li>
          <li><a href="#">Link</a></li>
          <li><a href="#">Link</a></li>
          <li class="dropdown">
            <a data-toggle="dropdown" class="dropdown-toggle" href="#">Dropdown <b class="caret"></b></a>
            <ul class="dropdown-menu">
              <li>
                <a href="#">2-level Dropdown <i class="icon-arrow-right"></i></a>
                <ul class="dropdown-menu sub-menu">
                  <li><a href="#">Action</a></li>
                  <li><a href="#">Another action</a></li>
                  <li><a href="#">Something else here</a></li>
                  <li class="divider"></li>
                  <li class="nav-header">Nav header</li>
                  <li><a href="#">Separated link</a></li>
                  <li><a href="#">One more separated link</a></li>
                </ul>
              </li>
              <li><a href="#">Another action</a></li>
              <li><a href="#">Something else here</a></li>
              <li class="divider"></li>
              <li class="nav-header">Nav header</li>
              <li><a href="#">Separated link</a></li>
              <li><a href="#">One more separated link</a></li>
            </ul>
          </li>
        </ul>
        <form action="" class="navbar-search pull-left">
          <input type="text" placeholder="Search" class="search-query span2">
        </form>
        <ul class="nav pull-right">
          <li><a href="#">Link</a></li>
          <li class="divider-vertical"></li>
          <li class="dropdown">
            <a class="#" href="#">Menu</a>
          </li>
        </ul>
      </div>
      <!-- /.nav-collapse -->
    </div>
  </div>
</div>

<hr>

<ul class="nav nav-pills">
  <li class="active"><a href="#">Regular link</a></li>
  <li class="dropdown">
    <a href="#" data-toggle="dropdown" class="dropdown-toggle">Dropdown <b class="caret"></b></a>
    <ul class="dropdown-menu" id="menu1">
      <li>
        <a href="#">2-level Menu <i class="icon-arrow-right"></i></a>
        <ul class="dropdown-menu sub-menu">
          <li><a href="#">Action</a></li>
          <li><a href="#">Another action</a></li>
          <li><a href="#">Something else here</a></li>
          <li class="divider"></li>
          <li class="nav-header">Nav header</li>
          <li><a href="#">Separated link</a></li>
          <li><a href="#">One more separated link</a></li>
        </ul>
      </li>
      <li><a href="#">Another action</a></li>
      <li><a href="#">Something else here</a></li>
      <li class="divider"></li>
      <li><a href="#">Separated link</a></li>
    </ul>
  </li>
  <li class="dropdown">
    <a href="#">Menu</a>
  </li>
  <li class="dropdown">
    <a href="#">Menu</a>
  </li>
</ul>

演示

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