bootstrap学习总结-css组件(三)
今天我们来看看 css 组件效果以及其中比较重要的类，这些类都不难，关键要熟练掌握，搭配使用，灵活运用。关于前两篇中，css 样式和布局的文章，大家可以在首页进行阅读。http://www.cnblogs.com/jtjds/
一：导航组件
自己做了个导航，目前只有一级菜单，下一篇文章中，将给出二级菜单，涉及到 js 的插件，所以这里不在描述。
<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- 上述 3 个 meta 标签 * 必须 * 放在最前面，任何其他内容都 * 必须 * 跟随其后！ --> <title>二级菜单</title> <style> .sideBar-menu{margin:20px auto;width: 180px;} /*重写鼠标滑过的样式*/ .nav-pills li a:hover { background-color: #337ab7; color: #fff; } </style> <link href="css/bootstrap.css" rel="stylesheet"> <link href="css/bootstrap.min.css" rel="stylesheet"> <link href="css/style.css" rel="stylesheet"> <script src="http://cdn.bootcss.com/jquery/1.11.2/jquery.min.js"></script> <script src="http://cdn.bootcss.com/bootstrap/3.3.4/js/bootstrap.min.js"></script> </head> <body> <!-- bootstrap 制作导航菜单 --> <div class="sideBar-menu"> <ul class="nav nav-pills nav-stacked"> <li role="presentation" class="active"><a href="#"><span class="glyphicon glyphicon-th-large"> </span>首页</a></li> <li role="presentation" class=""><a href="#"><span class="glyphicon glyphicon-user"> </span>关于我</a></li> <li role="presentation" class=""><a href="#"><span class="glyphicon glyphicon-camera"> </span>那些年</a></li> <li role="presentation" class=""><a href="#"><span class="glyphicon glyphicon-pencil"> </span>碎碎念</a></li> <li role="presentation" class=""><a href="#"><span class="glyphicon glyphicon-book"> </span>留言板</a></li> <li role="presentation" class=""><a href="#"><span class="glyphicon glyphicon-heart"> </span>情感语</a></li> </ul> </div> </body> </html>
效果如下：
导航类需要注意以下几点：
1：导航组件依赖于 nav 类。（即使用其它类时，都必须写上这个类）
2：确保导航组件的可访问性（添加 role 属性）
3：涉及到的类包括 nav-tabs ,nav-pills(使导航呈现胶囊状)，nav-stacked(使水平导航变为竖直导航)，nav-justified(实现导航均等宽度排列)
4：对于 disabled 类，添加在导航页中的链接时（包括标签页和导航页），只是使其表面上被禁用（颜色变灰，鼠标形状改变），实际功能依然还存在。
5：带下拉菜单的导航使用。
我们来看下列子：可自行贴码测试，不再截图。
<!-- 导航依赖于 nav 类 nav-tabs 类依赖 nav 类 --> <ul class="nav nav-tabs"> <li role="presentation" class="active"><a href="#">Home</a></li> --- 注意加上 role 属性 <li role="presentation" class=""><a href="#">Profile</a></li> <li role="presentation" class=""><a href="#">Messages</a></li> </ul> <!--胶囊式标签页 竖直排列 nav-stacked--> <ul class="nav nav-pills nav-stacked"> <li role="presentation" class="active"><a href="#">Home</a></li> <li role="presentation" class=""><a href="#">Profile</a></li> <li role="presentation" class=""><a href="#">Messages</a></li> </ul> <!--两端对齐导航 nav-justified 可实现导航均列对齐--> <ul class="nav nav-tabs nav-justified"> <li role="presentation" class="active"><a href="#">Home</a></li> <li role="presentation" class=""><a href="#">Profile</a></li> <li role="presentation" class=""><a href="#">Messages</a></li> </ul> <br><br>
再来看下带下拉菜单的导航情况：
<ul class="nav nav-pills"> <li role="presentation" class="dropdown"> <a class="dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true"
aria-expanded="false"> Dropdown<span class="caret"></span>
</a> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Action 111</a></li> <li><a href="#">Action 222</a></li> <li><a href="#">Action 333</a></li> </ul> </li> <li role="presentation" class="divider"></li> --divider 表示添加分隔线，一般都是给空的 li 或者 span 进行使用 <li role="presentation" class=""><a href="#">Profile</a></li> <li role="presentation" class=""><a href="#">Messages</a></li></ul>
其实对于使用下拉菜单类 dropdown，基本格式都是像上面这样，或者你把链接 a 变为 button 等之类，灵活运用即可。
二：导航条组件
注意点：
1：导航条即把组件全部横向排列放置，包裹组件，类似于横向导航的形式
2：确保可访问性。使用 <nav> 标签或者 <div role="navigation">
3：涉及到导航条的类包括：navbar-inverse（实现背景颜色为黑色和文字白色效果）,navbar-fixed-top|navbar-fixed-bottom(固定导航条在顶部和底部)
navbar-left|navbar-right(通常给最后一个元素加 navbar-right),navbar-text,navbar-link(设置连接颜色),navbar-btn( 对于不包含在 form 表单里的按钮，可
使用此类，达到垂直居中的效果 )，navbar-form( 达到垂直对齐效果)，navber-brand(设置品牌图标)，navbar-collapse(折叠)
我们来看下 navbar-collapse 折叠的效果，代码如下：
<!-- 导航条 collapsed 表示折叠--> <nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> -- 导航条头部 <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">brand </span><span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">div</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">div </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="collapse navbar-collapse"</span><span style="color: rgba(255, 0, 0, 1)"> id</span><span style="color: rgba(0, 0, 255, 1)">="bs-example-navbar-collapse-1"</span><span style="color: rgba(0, 0, 255, 1)">> --折叠栏目</span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">ul </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="nav navbar-nav"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="active"</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Link <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">span </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="sr-only"</span><span style="color: rgba(0, 0, 255, 1)">></span>current<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">span</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Link<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="dropdown"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(255, 0, 0, 1)"> class</span><span style="color: rgba(0, 0, 255, 1)">="dropdown-toggle"</span><span style="color: rgba(255, 0, 0, 1)"> data-toggle</span><span style="color: rgba(0, 0, 255, 1)">="dropdown"</span><span style="color: rgba(255, 0, 0, 1)"> role</span><span style="color: rgba(0, 0, 255, 1)">="button"</span><span style="color: rgba(255, 0, 0, 1)"> <br> aria-haspopup</span><span style="color: rgba(0, 0, 255, 1)">="true"</span><span style="color: rgba(255, 0, 0, 1)"> aria-expanded</span><span style="color: rgba(0, 0, 255, 1)">="false"</span><span style="color: rgba(0, 0, 255, 1)">></span>Dropdown <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">span </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="caret"</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">span</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">ul </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="dropdown-menu"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Action<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Another action<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Something else here<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li </span><span style="color: rgba(255, 0, 0, 1)">role</span><span style="color: rgba(0, 0, 255, 1)">="separator"</span><span style="color: rgba(255, 0, 0, 1)"> class</span><span style="color: rgba(0, 0, 255, 1)">="divider"</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Separated link<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li </span><span style="color: rgba(255, 0, 0, 1)">role</span><span style="color: rgba(0, 0, 255, 1)">="separator"</span><span style="color: rgba(255, 0, 0, 1)"> class</span><span style="color: rgba(0, 0, 255, 1)">="divider"</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>One more separated link<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">ul</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">ul</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">form </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="navbar-form navbar-left"</span><span style="color: rgba(255, 0, 0, 1)"> role</span><span style="color: rgba(0, 0, 255, 1)">="search"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">div </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="form-group"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"> <</span><span style="color: rgba(128, 0, 0, 1)">input </span><span style="color: rgba(255, 0, 0, 1)">type</span><span style="color: rgba(0, 0, 255, 1)">="text"</span><span style="color: rgba(255, 0, 0, 1)"> class</span><span style="color: rgba(0, 0, 255, 1)">="form-control"</span><span style="color: rgba(255, 0, 0, 1)"> placeholder</span><span style="color: rgba(0, 0, 255, 1)">="Search"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">div</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">button </span><span style="color: rgba(255, 0, 0, 1)">type</span><span style="color: rgba(0, 0, 255, 1)">="submit"</span><span style="color: rgba(255, 0, 0, 1)"> class</span><span style="color: rgba(0, 0, 255, 1)">="btn btn-default"</span><span style="color: rgba(0, 0, 255, 1)">></span>Submit<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">button</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">form</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">ul </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="nav navbar-nav navbar-right"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Link<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="dropdown"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(255, 0, 0, 1)"> class</span><span style="color: rgba(0, 0, 255, 1)">="dropdown-toggle"</span><span style="color: rgba(255, 0, 0, 1)"> data-toggle</span><span style="color: rgba(0, 0, 255, 1)">="dropdown"</span><span style="color: rgba(255, 0, 0, 1)"> role</span><span style="color: rgba(0, 0, 255, 1)">="button"</span><span style="color: rgba(255, 0, 0, 1)"> <br> aria-haspopup</span><span style="color: rgba(0, 0, 255, 1)">="true"</span><span style="color: rgba(255, 0, 0, 1)"> aria-expanded</span><span style="color: rgba(0, 0, 255, 1)">="false"</span><span style="color: rgba(0, 0, 255, 1)">></span>Dropdown <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">span </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="caret"</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">span</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">ul </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="dropdown-menu"</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Action<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Another action<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Something else here<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li </span><span style="color: rgba(255, 0, 0, 1)">role</span><span style="color: rgba(0, 0, 255, 1)">="separator"</span><span style="color: rgba(255, 0, 0, 1)"> class</span><span style="color: rgba(0, 0, 255, 1)">="divider"</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">><</span><span style="color: rgba(128, 0, 0, 1)">a </span><span style="color: rgba(255, 0, 0, 1)">href</span><span style="color: rgba(0, 0, 255, 1)">="#"</span><span style="color: rgba(0, 0, 255, 1)">></span>Separated link<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">a</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">ul</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">ul</span><span style="color: rgba(0, 0, 255, 1)">></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">div</span><span style="color: rgba(0, 0, 255, 1)">></span><span style="color: rgba(0, 128, 0, 1)"><!--</span><span style="color: rgba(0, 128, 0, 1)"> navbar-collapse 折叠</span><span style="color: rgba(0, 128, 0, 1)">--></span> <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">div</span><span style="color: rgba(0, 0, 255, 1)">></span></nav>
<!-- button 中的三横 -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Brand</a>
</div>
实现效果如下：
即当我浏览器屏幕缩小时，原先的组件都将变为跟 brand 一行的 右边的折叠行（三横线）。点击该三横按钮，则组件将显示出来。
三：分页组件
注意点：
1：使用类 pagination(加 pagination-lg 类可使其变大)
2：实现翻页对齐与实现翻页两端对齐（前和后分别位于两端）。
贴码如下：
<!-- 分页 类--> <nav> <ul class="pagination"> <li> <a href="#" aria-label="Previous"> <span aria-hidden="true">«</span> </a> </li> <li class="active"><a href="#">1</a></li> <li><a href="#">2</a></li> <li><a href="#">3</a></li> <li><a href="#">4</a></li> <li><a href="#">5</a></li> <li><a href="#" aria-label="next"><span aria-hidden="true">»</span></a></li> </ul> </nav>
如果实现分页变大直接加上 <ul class="pagination pagination-lg"> 即可。
实现翻页效果如下：主要用到 pager 类
<!--翻页--> <nav> <ul class="pager"> <li class="active"><a href="#">previous</a></li> <li><a href="#">next</a></li> </ul> </nav> <!--对齐链接分居两端加了 previous 类和 next 类--> <nav> <ul class="pager"> <li class="previous disabled"><a href="#"><span aria-hidden="true">←</span>older</a></li> <li class="next"><a href="#">newer<span aria-hidden="true">→</span></a></li> </ul> </nav>
上面两个的效果如下：
四：徽章
作用：将信息以醒目的数字呈现出来。
<!--徽章 --> <a href="#">Inbox<span class="badge">42</span></a> <button class="btn btn-primary" type="button"> Message<span class="badge">4</span> </button>
效果如下：
添加此类 badge 类，也可配合导航等一起使用。
五：缩略图组件
配合栅格系统和类 thumbnail 来一起使用。贴码如下：可自行测试
<!-- 缩略图 thumbnail --> <div class="row"> <div class="col-xs-6 col-md-4"> <div class="thumbnail"> <img src="111.png"> <div class="caption"> <h3>Thumbnail label</h3> <p><a href="#" class="btn btn-primary" role="button">Button</a></p> </div> </div> </div> <!-- 第二个 --> <div class="col-xs-6 col-md-4"> <div class="thumbnail"> <img src="111.png"> <div class="caption"> <h3>Thumbnail label</h3> <p><a href="#" class="btn btn-primary" role="button">Button</a></p> </div> </div> </div> <!-- 第三个 --> <div class="col-xs-6 col-md-4"> <div class="thumbnail"> <img src="111.png"> <div class="caption"> <h3>Thumbnail label</h3> <p><a href="#" class="btn btn-primary" role="button">Button</a></p> </div> </div> </div></div>
六：可关闭的警告框
使用类：alert-dismissible 和一个 button 贴码如下：
<!-- 为警告框提供关闭按钮 --> <div class="alert alert-warning alert-dismissible" role="alert"> <button type="button" class="close" data-dismiss="alert" aria-label="close"> <span aria-hidden="true">×</span> -- 添加 aria-hidden 属性 </button> <strong>warning</strong>better check yourself,you are not looking too good. </div> <!-- data-dismiss="alert" 为确保在所有设备上的正确行为 -->
关于情景色，可自行替换。不再描述。设置 alert-link 可设置与当前警告框相符的颜色。
七：进度条
使用类:progress 和实现动画的进度条
<!-- 进度条 --> <div class="progress"> <div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemax="100" aria-valuemin="0"
style="width:60%;"> 60% </div> </div> <!-- 设置最低宽度 --> <div class="progress"> <div class="progress-bar progress-bar-success" role="progressbar" aria-valuenow="80" aria-valuemin="0"
aria-valuemax="100" style="width:80%;">80% </div></div>
<div class="progress">
<div class="progress-bar" role="progressbar" aria-valuenow="2" aria-valuemin="0" aria-valuemax="100"
style="min-width:2em;">2%
</div></div>
实现动画效果的进度条，条纹的进度条使用 progress-bar-striped, 实现动画效果加 active 即可。贴码如下：不再截图
<!-- 条纹类使用 progress-bar-striped --> <div class="progress"> <div class="progress-bar progress-bar-success progress-bar-striped active" role="progressbar" aria-valuenow="100"
aria-valuemin="0" aria-valuemax="100" style="width:100%"> <span class="sr-only">40% complete</span>100% </div> </div>
也可结合情景色，改变进度条条纹的颜色。
八：列表组，输入组组件
先来看列表组，主要用到 list-group 类，其次列表项目用 list-group-item 来写。贴码如下：
<!-- 列表组 --> <ul class="list-group"> <li class="list-group-item"><span class="badge">3</span>1111</li> <li class="list-group-item"><span class="badge">5</span>2222</li> <li class="list-group-item">3333</li> <li class="list-group-item">4444</li> <li class="list-group-item">5555</li> </ul> <!-- 链接作为列表组 也可添加情景类--> <div class="list-group"> <a href="#" class="list-group-item active">2222</a> <a href="#" class="list-group-item disabled">33333</a> <a href="#" class="list-group-item-success">44444</a> <a href="#" class="list-group-item-info">55555</a> </div> <!-- 按钮作为列表组，使用 div, 不能用.btn 类 --> <div class="list-group"> <button type="button" class="list-group-item list-group-item-warning">1111</button> <button type="button" class="list-group-item-danger">2222</button> <button type="button" class="list-group-item-success">3333</button> <button type="button" class="list-group-item-info">4444</button> </div> <!--列表组定制内容 --> <div class="list-group"> <a href="#" class="list-group-item active"> <h4 class="list-group-item-heading">list group item</h4> <p class="list-group-item-text">11111</p> </a> <a href="#" class="list-group-item"> <h4 class="list-group-item-heading">list group item</h4> <p class="list-group-item-text">22222</p> </a> </div>
来看看输入组，使用 input-group 类，将组件包裹在一起使用。贴码如下：
<!-- 输入组 --> <div class="input-group"> -- 组件均包含在 inout-group 的里面 <span class="input-group-btn"> <button class="btn btn-primary" type="button">Go</button> </span> <input type="text" class="form-control" aria-label="text"> </div>
九：响应式特性的嵌入内容
理解一下什么意思，什么叫嵌入内容？如何嵌入呢？又如何响应呢？
嵌入：即利用<iframe>、<embed>、<video> 和 <object> 等标签引入外部文件内容。相信 html5 里的新增的属性大家都知道.video,radio 等
响应：根据被嵌入内容的外部容器的宽度，自动创建一个固定的比例，从而让浏览器自动确定视频或 内容 的尺寸，能够在各种设备上缩放。
如果希望让最终样式与其他属性相匹配，还可以明确地使用一个派生出来的 .embed-responsive-item 类。
贴码如下：
<div class="embed-responsive embed-responsive-16by9"> <iframe class="embed-responsive-item" src="..."></iframe> </div> <div class="embed-responsive embed-responsive-4by3"> <iframe class="embed-responsive-item" src="..."></iframe> </div>
我们来看看embed-responsive-16by9和embed-responsive-4by3 分别代表什么意思。
我们来看一下调式控制台：
.embed-responsive-4by3 { ---4 代表水平，3 代表竖向，即一个缩放比例，即为 4:3 的比例缩放 padding-bottom: 75%; }
..embed-responsive-16by9 {
padding-bottom: 56.25%;
}
保持纵横比，width 按 100% 算的话，则为 100% * 3/4=75%，此时通过设置它的 padding-botom 来设置它的纵横比。当你缩放浏览器时，始
终保持该缩放比例进行缩放。
作者：向婷风
出处：http://www.cnblogs.com/jtjds/p/5561875.html
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