我想有我的引导菜单自动下拉悬停，而不是必须点击菜单标题。我还想去掉菜单标题旁边的小箭头。
当前回答
我希望这能有所帮助。查看链接https://jsfiddle.net/awb7gfb1/
<nav>
<div id="menubar" class=" collapse navbar-collapse row">
<ul id="dropdownNavbar" class="nav navbar-nav">
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn"><span class="glyphicon glyphicon-time"></span>
Time Card
<span class="caret"></span></button>
<div class="dropdown-content">
<a id="showTimeCard" href="#">My Time Card</a>
<a href="#">Sub Menu 2</a>
<a href="#">Sub Menu 3</a>
<a href="#">Sub Menu 4</a>
<a href="#">Sub Menu 5</a>
</div>
</li>
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn"><span class="glyphicon glyphicon-stats"></span>
Project
<span class="caret"></span></button>
<div class="dropdown-content">
<a href="#">Sub Menu 1</a>
<a href="#">Sub Menu 2</a>
<a href="#">Sub Menu 3</a>
</div>
</li>
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn"><span class="glyphicon glyphicon-user"></span>
HR Links
<span class="caret"></span></button>
<div class="dropdown-content">
<a href="#">Sub Menu 1</a>
<a href="#">Sub Menu 2</a>
</div>
</li>
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn">
<span class="glyphicon glyphicon-screenshot"></span>
Leave Tracker
<span class="caret"></span></button>
<div class="dropdown-content">
<a href="#">Sub Menu 1</a>
<a href="#">Sub Menu 2</a>
<a href="#">Sub Menu 3</a>
<a href="#">Sub Menu 4</a>
</div>
</li>
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn">
<span class="glyphicon glyphicon-briefcase"></span>
Accounts
<span class="caret"></span></button>
<div class="dropdown-content">
<a href="#">Sub Menu 1</a>
<a href="#">Sub Menu 2</a>
<a href="#">Sub Menu 3</a>
<a href="#">Sub Menu 4</a>
<a href="#">Sub Menu 5</a>
</div>
</li>
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn">
<span class="glyphicon glyphicon-headphones"></span>
Service Desk
<span class="caret"></span></button>
<div class="dropdown-content">
<a href="#">Sub Menu 1</a>
<a href="#">Sub Menu 2</a>
<a href="#">Sub Menu 3</a>
<a href="#">Sub Menu 4</a>
</div>
</li>
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn">
<span class="glyphicon glyphicon-file"></span>
Reports
<span class="caret"></span></button>
<div class="dropdown-content">
<a href="#">Sub Menu 1</a>
<a href="#">Sub Menu 2</a>
<a href="#">Sub Menu 3</a>
<a href="#">Sub Menu 4</a>
<a href="#">Sub Menu 5</a>
</div>
</li>
<li class="dropdown">
<button type="button" class="btn btn-primary dropbtn">
<span class="glyphicon glyphicon-cog"></span>
Settings
<span class="caret"></span></button>
<div class="dropdown-content">
<a href="#">Sub Menu 1</a>
<a href="#">Sub Menu 2</a>
<a href="#">Sub Menu 3</a>
</div>
</li>
</ul>
</div>
</nav>
还有CSS
.dropdown {
float: left;
padding-right: 1px;
}
.dropbtn{
border: 0px;
height: 30px;
border-radius: 0px 10px;
}
li button, .dropbtn {
display: inline-block;
color: white;
text-align: center;
}
li button:hover, .dropdown:hover .dropbtn {
background-color: #12A5F4;
}
.dropbtn.active {
background: #12A5F4;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #e8f3f4;
min-width: 100%;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.1);
z-index: 10;
}
.navbar-header{
overflow: visible;
z-index: 1;
}
.dropdown-content a {
color: black;
padding: 5px 10px;
display: block;
text-align: left;
}
.dropdown-content a:hover {
background-color: #d8dee2
}
.dropdown:hover .dropdown-content {
display: block;
}
#menubar{
padding-top: 5px;
overflow: visible;
z-index: 10;
padding-left: 0px;
padding-right: 0px;
margin: 0px;
}
#dropdownNavbar{
margin: 0px;
}
.navbar-toggle{
background-color: #3382d5;
}
.navbar-toggle span{
background-color: white;
}
其他回答
这样就把上面的隐藏起来了
.navbar .dropdown-menu:before {
display:none;
}
.navbar .dropdown-menu:after {
display:none;
}
这可能是一个愚蠢的想法，但要删除指向向下的箭头，您可以删除
<b class="caret"></b>
不过，这对向上的那个没有任何作用……
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a>
<ul class="dropdown-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><a href="#">Separated link</a></li>
<li class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<script>
$('ul.nav li.dropdown').hover(function() {
$(this).find('.dropdown-menu').stop(true,
true).delay(200).fadeIn(500);
}, function() {
$(this).find('.dropdown-menu').stop(true,
true).delay(200).fadeOut(500);
});
</script>
还添加了margin-top:0来重置.dropdown-menu的引导css边距，这样当用户缓慢地从下拉菜单悬停到菜单列表时，菜单列表不会消失。
ul.nav li.dropdown:hover > ul.dropdown-menu {
display: block;
}
.nav .dropdown-menu {
margin-top: 0;
}
为那些想在移动设备上使用默认功能的用户添加这个功能。可以设置min-width:…根据需要
@media only screen and (min-width: 1195px) {
ul.nav li.dropdown:hover > ul.dropdown-menu {
display: block;
}
ul.nav li.dropdown> ul.dropdown-menu {
display: none;
}
}
设置display: none，这样下拉开关就不会产生问题。如果保持原样，可能会同时打开两个下拉列表。
