我需要在网页中有轮播幻灯片，并且轮播幻灯片内部需要有下拉菜单。
轮播幻灯片工作正常，但是当我单击 dorpdown 菜单按钮时 似乎没有出现。
请帮我找出解决方案。
下面是我的代码。
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<style>
.carousel-control.left {
left: -30px;
/* left: auto; */
}
.carousel-control .icon-prev,
.carousel-control .glyphicon-chevron-left {
left: 50%;
margin-left: -10px;
}
.carousel-control .icon-next,
.carousel-control .glyphicon-chevron-right {
right: 50%;
margin-right: -10px;
}
.carousel-indicators {
position: absolute;
bottom: -40px;
left: 50%;
z-index: 15;
width: 60%;
padding-left: 0;
margin-left: -30%;
text-align: center;
list-style: none;
}
.carousel-control {
position: absolute;
top: 0;
bottom: 0;
left: 0;
font-size: 20px;
color: #FFFFFF;
/* width: 15%;
filter: alpha(opacity=50);
opacity: .5;
*/
text-align: center;
text-shadow: 0 1px 2px rgba(0, 0, 0, .6);
}
</style>
</head>
<body>
<div class="container">
<br>
<div id="myCarousel" class="carousel slide">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
<li data-target="#myCarousel" data-slide-to="3"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<div class="dropdown">
<button class="btn btn-primary dropdown-toggle" id="menu1" type="button" data-toggle="dropdown">Dropdown Example
<span class="caret"></span></button>
<ul class="dropdown-menu" role="menu" aria-labelledby="menu1">
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">HTML</a></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">CSS</a></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">JavaScript</a></li>
<li role="presentation" class="divider"></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">About Us</a></li>
</ul>
</div>
</div>
<div class="item">
<div class="dropdown">
<button class="btn btn-danger dropdown-toggle" id="menu1" type="button" data-toggle="dropdown">Dropdown Example
<span class="caret"></span></button>
<ul class="dropdown-menu" role="menu" aria-labelledby="menu1">
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">HTML</a></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">CSS</a></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">JavaScript</a></li>
<li role="presentation" class="divider"></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">About Us</a></li>
</ul>
</div>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</body>
</html>最佳答案
只需将 carousel-inner 从 overflow:hidden 更改为 overflow:visible。
.carousel-inner {
overflow: visible;
}
工作示例:
.carousel .carousel-control.left {
left: -30px;
/* left: auto; */
}
.carousel .carousel-control .icon-prev,
.carousel .carousel-control .glyphicon-chevron-left {
left: 50%;
margin-left: -10px;
}
.carousel .carousel-control .icon-next,
.carousel .carousel-control .glyphicon-chevron-right {
right: 50%;
margin-right: -10px;
}
.carousel .carousel-indicators {
position: absolute;
bottom: -40px;
left: 50%;
z-index: 15;
width: 60%;
padding-left: 0;
margin-left: -30%;
text-align: center;
list-style: none;
}
.carousel-control {
position: absolute;
top: 0;
bottom: 0;
left: 0;
font-size: 20px;
color: #FFFFFF;
text-align: center;
text-shadow: 0 1px 2px rgba(0, 0, 0, .6);
}
.carousel .carousel-inner {
overflow: visible;
text-align: center
}<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<div class="container">
<br>
<div id="myCarousel" class="carousel slide">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
</ol>
<div class="carousel-inner" role="listbox">
<div class="item active">
<div class="btn-group">
<button class="btn btn-primary dropdown-toggle" id="menu1" type="button" data-toggle="dropdown">Dropdown Example
<span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu" aria-labelledby="menu1">
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">HTML</a>
</li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">CSS</a>
</li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">JavaScript</a>
</li>
<li role="presentation" class="divider"></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">About Us</a>
</li>
</ul>
</div>
</div>
<div class="item">
<div class="btn-group">
<button class="btn btn-danger dropdown-toggle" id="menu2" type="button" data-toggle="dropdown">Dropdown Example
<span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu" aria-labelledby="menu1">
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">HTML</a>
</li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">CSS</a>
</li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">JavaScript</a>
</li>
<li role="presentation" class="divider"></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">About Us</a>
</li>
</ul>
</div>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>关于html - Bootstrap 下拉菜单在轮播幻灯片中不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41614787/