我们可以使用一个按钮或链接来打开下拉菜单, 按钮或链接需要添加 .dropdown-toggle 和 data-toggle="dropdown" 属性。 <div> 元素上添加 .dropdown-menu 类来设置实际下拉菜单,然后在下拉菜单的选项中添加 .dropdown-item 类。 下拉菜单中的分割线 .dropdown-divider 类用于在下拉菜单中创建一个水平的分割线: ...
Now it’s time to create the actual dropdown content, which will be hidden until the user hovers over the button. For the example below, we’ll include three links in the dropdown menu. Each of the links will be wrapped in a div with the class namedropdown-content. Here’s the HTM...
DOCTYPEhtml><html><head><title>Dropdown Menu</title><style>select{padding:5px;font-size:16px;}</style></head><body><selectid="dropdown"><optionvalue="option1">Option 1</option><optionvalue="option2">Option 2</option><optionvalue="option3">Option 3</option></select><script>document...
如何让无序列表横向显示(float:left) 如何实现鼠标停留时,出现下拉菜单(:hover) 相对定位和绝对定位(position:relative、absolute) html和css代码分别如下: <!DOCTYPE html><html><head><title>Dropdown menu</title><linkrel="stylesheet"type="text/css"href="index5.css"><body><nav><p>ptravels</p><ul...
dropdown-toggle 类添加了 outline: 0; on :focus 到按钮,所以当你点击按钮时,它不会有“活动”的蓝色边框元素。 检查接下来的两个按钮: <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/...
Drop Down Menu Html. Create Fancy CSS3 Dropdown Menus & Buttons in Seconds! No JavaScript, No Images, No Flash : CSS Only! Navigation Iphone Css
Step 1 – HTML code Create a new HTML file and copy the HTML code below. Each drop-down menu button will be contained inside a div with a class name of ‘dropdown_div‘. The button will have a class name of ‘dropdown_button‘ and the actual drop-down menu will be inside a div...
This section allows you to enter the items that will show in the drop down menu. The 'Text shown' is what you will see for each entry; in the example above, this is 'Yahoo' and 'Google'. The link URL is the URL that this item opens when chosen or clicked. ...
外层标签为<nav></nav>,其class属性值为dropdownmenu,里面是一个ul容器,li列举是菜单内容。li里面包含的ul容器和li列举,这是该菜单的二级菜单,二级菜单的ul容器的id值为submenu。 x CSS代码 .dropdownmenu ul,.dropdownmenu li{ margin:0; padding:0; ...
使用bootstrape 插入下拉菜单无法收缩回去,如图所示: html代码如下,bootstrap csc,js 库和jQuery的库都已经正确的引用 <div class="dropdown"> <button type="button" class="btn dropdown-toggle" id="dropdownMenu1" data-toggle="dropdown"> <div><img src="img/avatar-small.jpg"/></div> <span cl...