[英]Multilevel DropDown Menu With Scrollbar Issue
I have multilevel dropdown with scrollbar. 我有滚动条的多级下拉菜单。 But it won't show 3level submenu. 但它不会显示3level子菜单。 Kindly suggest me on this. 请在这方面建议我。
.dropdown-submenu { position: relative; } .dropdown-submenu>.dropdown-menu { top: 0; left: 100%; margin-top: -6px; margin-left: -1px; -webkit-border-radius: 0 6px 6px 6px; -moz-border-radius: 0 6px 6px; border-radius: 0 6px 6px 6px; overflow-y: scroll; overflow-x: hidden; height: 80px; } .dropdown-submenu:hover>.dropdown-menu { display: block; } .dropdown-submenu>a:after { display: block; content: " "; float: right; width: 0; height: 0; border-color: transparent; border-style: solid; border-width: 5px 0 5px 5px; border-left-color: #ccc; margin-top: 5px; margin-right: -10px; } .dropdown-submenu:hover>a:after { border-left-color: #fff; } .dropdown-submenu.pull-left { float: none; } .dropdown-submenu.pull-left>.dropdown-menu { left: -100%; margin-left: 10px; -webkit-border-radius: 6px 0 6px 6px; -moz-border-radius: 6px 0 6px 6px; border-radius: 6px 0 6px 6px; }
<link href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet"/> <script src="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script> <div class="container"> <div class="row"> <div class="dropdown"> <a id="dLabel" role="button" data-toggle="dropdown" class="btn btn-primary" data-target="#" href="/page.html"> Dropdown <span class="caret"></span> </a> <ul class="dropdown-menu multi-level" role="menu" aria-labelledby="dropdownMenu"> <li><a href="#">Some action</a></li> <li><a href="#">Some other action</a></li> <li class="divider"></li> <li class="dropdown-submenu"> <a tabindex="-1" href="#">Hover me for more options</a> <ul class="dropdown-menu"> <li><a tabindex="-1" href="#">Second level</a></li> <li class="dropdown-submenu"> <a href="#">Even More..</a> <ul class="dropdown-menu"> <li><a href="#">3rd level</a></li> <li><a href="#">3rd level</a></li> <li><a href="#">3rd level</a></li> <li><a href="#">3rd level</a></li> <li><a href="#">3rd level</a></li> <li><a href="#">3rd level</a></li> <li><a href="#">3rd level</a></li> </ul> </li> <li><a href="#">Second level</a></li> <li><a href="#">Second level</a></li> </ul> </li> </ul> </div> </div> </div>
I want submenu should start from top. 我希望子菜单应该从顶部开始。 Something like this https://ibb.co/jWeFwk , https://ibb.co/goO8Gk kindly go through it & suggest me required changes in css. 像这样的东西https://ibb.co/jWeFwk , https://ibb.co/goO8Gk好心通过它与建议我需要在CSS的变化。
.dropdown-submenu>.dropdown-menu {
top: 0;
left: 100%;
margin-top: -6px;
margin-left: -1px;
-webkit-border-radius: 0 6px 6px 6px;
-moz-border-radius: 0 6px 6px;
border-radius: 0 6px 6px 6px;
/**
* It's unnecessary.
*/
/* overflow-y: scroll;
overflow-x: scroll;
height: 80px; */
}
See the Updated Fiddle here : Fiddle 在这里查看更新的小提琴: 小提琴
<div class="container">
<div class="row">
<div class="dropdown">
<a id="dLabel" role="button" data-toggle="dropdown" class="btn btn-primary" data-target="#" href="/page.html">
Dropdown <span class="caret"></span>
</a>
<ul class="dropdown-menu multi-level" role="menu" aria-labelledby="dropdownMenu">
<li><a href="#">Some action</a></li>
<li><a href="#">Some other action</a></li>
<li class="divider"></li>
<li class="dropdown-submenu">
<a tabindex="-1" href="#">Hover me for more options</a>
<ul class="dropdown-menu">
<li><a tabindex="-1" href="#">Second level</a></li>
<li class="dropdown-submenu">
<a href="#">Even More..</a>
<ul class="dropdown-menu dropdown-menu-3">
<li><a href="#">3rd level</a></li>
<li><a href="#">3rd level</a></li>
<li><a href="#">3rd level</a></li>
<li><a href="#">3rd level</a></li>
<li><a href="#">3rd level</a></li>
<li><a href="#">3rd level</a></li>
<li><a href="#">3rd level</a></li>
</ul>
</li>
<li><a href="#">Second level</a></li>
<li><a href="#">Second level</a></li>
</ul>
</li>
</ul>
</div>
</div>
CSS: CSS:
.dropdown-submenu {
position: relative;
}
.dropdown-submenu>.dropdown-menu {
top: 0;
left: 100%;
margin-top: -6px;
margin-left: -1px;
-webkit-border-radius: 0 6px 6px 6px;
-moz-border-radius: 0 6px 6px;
border-radius: 0 6px 6px 6px;
height: 120px;
}
.dropdown-submenu>.dropdown-menu-3{
height: 196px;
}
.dropdown-submenu:hover>.dropdown-menu {
display: block;
}
.dropdown-submenu>a:after {
display: block;
content: " ";
float: right;
width: 0;
height: 0;
border-color: transparent;
border-style: solid;
border-width: 5px 0 5px 5px;
border-left-color: #ccc;
margin-top: 5px;
margin-right: -10px;
}
.dropdown-submenu:hover>a:after {
border-left-color: #fff;
}
.dropdown-submenu.pull-left {
float: none;
}
.dropdown-submenu.pull-left>.dropdown-menu {
left: -100%;
margin-left: 10px;
-webkit-border-radius: 6px 0 6px 6px;
-moz-border-radius: 6px 0 6px 6px;
border-radius: 6px 0 6px 6px;
}
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