带Bootstrap的可滚动菜单-菜单在不应展开其容器时展开
带Bootstrap的可滚动菜单-菜单在不应展开其容器时展开
提问于 2013-10-07 22:30:28
我尝试了this method (their fiddle)在Bootstrap中启用滚动菜单，但是通过这种方法，可滚动菜单展开了它的容器-- fiddle --正确地说，不可滚动菜单不能这样做。
我该如何解决这个问题呢？对于与Bootstrap兼容的其他方法的建议也很受欢迎！
作为参考，下面是第一个方法的小提琴中的HTML：
<ul class="nav">
<li class="dropdown">
<a class="icon-key icon-white" data-toggle="dropdown" href="#" style=
"font-weight: bold"></a>
<div class="dropdown-menu" style="margin-left: 2em">
<ul class="dropdown-menu">
<!-- static non-scrollable menu header 1 -->
</ul>
</div>
<div class="dropdown-menu" style="margin-left: 2em">
<ul class="dropdown-menu">
<li class="disabled">
<a href="#"><i class="icon-group"></i> <b>My Groups</b></a>
</li>
<li>
<div class="dropdown-menu scroll-menu scroll-menu-2x"
style="margin-left: 2em">
<ul class="dropdown-menu scroll-menu scroll-menu-2x">
<li>
<a href="#">User</a>
</li>
<li>
<a href="#">Administrators</a>
</li>
<li>
<a href="#">Some Other Group</a>
</li>
</ul>
</div>
<ul class="dropdown-menu scroll-menu scroll-menu-2x">
<!-- Additional menu items omitted for brevity -->
</ul>
</li>
</ul>
</div>
<div class="dropdown-menu" style="margin-left: 2em">
<ul class="dropdown-menu">
<!-- static non-scrollable menu header 2 -->
</ul>
</div>
<div class="dropdown-menu" style="margin-left: 2em">
<ul class="dropdown-menu">
<li class="disabled">
<a href="#"><i class="icon-user"></i> <b>My Roles</b></a>
</li>
<li>
<div class="dropdown-menu scroll-menu scroll-menu-2x"
style="margin-left: 2em">
<ul class="dropdown-menu scroll-menu scroll-menu-2x">
<li>
<a href="#">Core Users</a>
</li>
<li>
<a href="#">Admin</a>
</li>
<li>
<a href="#">Some Other Role</a>
</li>
</ul>
</div>
<ul class="dropdown-menu scroll-menu scroll-menu-2x">
<!-- Additional menu items omitted for brevity -->
</ul>
</li>
</ul>
</div>
<div class="dropdown-menu" style="margin-left: 2em">
<ul class="dropdown-menu">
<!-- static non-scrollable menu footer -->
</ul>
</div>
<ul class="dropdown-menu">
<li class="disabled">
<a href="#"><i class="icon-chevron-up pull-left"></i> <i class="icon-chevron-up pull-right"></i></a>
</li>
</ul>
</li>
</ul>和CSS：
/* So we wont impact the original bootstrap menu or it's pseudo call-out
arrow the menu is wrapped in a sub dropdown-menu with a chained scroll-menu */
ul.scroll-menu {
position:relative;
display:inherit!important;
overflow-x:auto;
-webkit-overflow-scrolling:touch;
-moz-overflow-scrolling:touch;
-ms-overflow-scrolling:touch;
-o-overflow-scrolling:touch;
overflow-scrolling:touch;
top:0!important;
left:0!important;
width:100%;
height:auto;
max-height:500px;
margin:0;
border-left:none;
border-right:none;
-webkit-border-radius:0!important;
-moz-border-radius:0!important;
-ms-border-radius:0!important;
-o-border-radius:0!important;
border-radius:0!important;
-webkit-box-shadow:none;
-moz-box-shadow:none;
-ms-box-shadow:none;
-o-box-shadow:none;
box-shadow:none
}回答 3
Stack Overflow用户
发布于 2015-05-19 00:23:24
对于CSS，我发现当显示浏览器chrome时，最大高度为180更适合手机横向320。
.scrollable-menu {
height: auto;
max-height: 180px;
overflow-x: hidden;
}此外，要添加可见的滚动条，此CSS应该可以完成此操作：
.scrollable-menu::-webkit-scrollbar {
-webkit-appearance: none;
width: 4px;
}
.scrollable-menu::-webkit-scrollbar-thumb {
border-radius: 3px;
background-color: lightgray;
-webkit-box-shadow: 0 0 1px rgba(255,255,255,.75);
}这些变化反映在这里：https://www.bootply.com/BhkCKFEELL
Stack Overflow用户
发布于 2016-09-13 03:21:13
在UL标签的内联中执行所有操作
<ul class="dropdown-menu scrollable-menu" role="menu" style="height: auto;max-height: 200px; overflow-x: hidden;">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li><a href="#">Action</a></li>
..
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
</ul>Stack Overflow用户
发布于 2016-05-05 15:51:03
我希望这段代码能很好地工作，试试这个。
添加css文件。
.scrollbar {
height: auto;
max-height: 180px;
overflow-x: hidden;
}HTML代码：
<div class="col-sm-2 scrollable-menu" role="menu">
<div>
<ul>
<li><a class="active" href="#home">Tutorials</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
</ul>
</div>
</div>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/19227496
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