.dropdown { position: relative; } .dropdown-toggle:focus { outline: 0; } .dropdown-menu { position: absolute; top: 100%; left: 0; z-index: 1000; dKPqXnhUeydisplay: none; float: left; min-width: 160px; padding: 5px 0; margin: 2px 0 0; font-size: 14px; text-align: left;...
<li><a class="dropdown-item" href="#">Link 3</a></li> </ul></div> Try it Yourself » Example ExplainedThe .dropdown class indicates a dropdown menu.To open the dropdown menu, use a button or a link with a class of .dropdown-toggle and the data-bs-toggle="dropdown" att...
在“btn-group”或“dropdown”上添加类名“dropup”即可。实现源码如下: .dropup .dropdown-menu, .navbar-fixed-bottom .dropdown .dropdown-menu { top: auto; bottom: 100%; margin-bottom: 1px; } 主要就是将“dropdown-menu”的top值变成了auto,而把bottom值换成了100%。
1.text 位置控制 .text-left Align your text content to the left position using this class. .text-right Right align the text content position using this class .text-center If you want to make text align to the center position, you can use this class. .text-justify Justify align the text ...
1.dropdown-menu{2position:absolute;3top:100%;4left:0;5z-index:1000;6display:none;7float:left;8min-width:160px;9padding:5px 0;10margin:2px 0 0;11font-size:14px;12text-align:left;13list-style:none;14background-color:#fff;15-webkit-background-clip:padding-box;16background-clip:paddi...
下拉菜单是可切换的,是以列表格式显示链接的上下文菜单。这可以通过与 下拉菜单(Dropdown) JavaScript 插件 的互动来实现。 将下拉菜单触发器和下拉菜单都包裹在 .dropdown 里,或者另一个声明了 position: relative; 的元素。然后加入组成菜单的 HTML 代码。下面的实例演示了基本的下拉菜单: ...
We’ve overhauled the JavaScript and positioning for our dropdowns as part of our adoption of Popper 2. You can seeall the options in a new example in our docsand new CSS selectors and data attributes used to position them. Dropdown menus now have a new.dropdown-menu-darkmodifier class...
1.外围容器使用 class="dropdown"包裹; 2.内部点击按钮事件绑定 data-toggle="dropdown"; 3.菜单元素使用 class="dropdown-menu"。 在JavaScript 调用中,没有属性,方法并不好用,下面介绍四个基本事件。 //下拉菜单方法,但仍然需要 data-*$('#btn').dropdown();$('#btn').dropdown('toggle')...
Toggle contextual overlays for displaying lists of links and more with the Bootstrap dropdown plugin.
#797979; text-decoration: none; }.tab-list-scrollbar { max-height: 250px; max-width: 180px; }.dropdown-menu ul { list-style: none; margin: 0; text-align: left; padding: 0; }.dropdown-menu ul li { line-height: 30px; padding: 0 20px; white-space: nowrap; }.dropdown-menu ...