一、按钮
类 描述
.btn 为按钮添加基本样式
.btn-default 默认/标准按钮
.btn-primary 原始按钮样式（未被操作）
.btn-success 表示成功的动作
.btn-info 该样式可用于要弹出信息的按钮
.btn-warning 表示需要谨慎操作的按钮
.btn-danger 表示一个危险动作的按钮操作
.btn-link 让按钮看起来像个链接 (仍然保留按钮行为)
.btn-lg 制作一个大按钮
.btn-sm 制作一个小按钮
.btn-xs 制作一个超小按钮
.btn-block 块级按钮(拉伸至父元素100%的宽度)
.active 按钮被点击
.disabled 禁用按钮
按钮样式
<body><!-- 标准的按钮 -->
<button type="button" class="btn btn-default">默认按钮</button><!-- 提供额外的视觉效果，标识一组按钮中的原始动作 -->
<button type="button" class="btn btn-primary">原始按钮</button><!-- 表示一个成功的或积极的动作 -->
<button type="button" class="btn btn-success">成功按钮</button><!-- 信息警告消息的上下文按钮 -->
<button type="button" class="btn btn-info">信息按钮</button><!-- 表示应谨慎采取的动作 -->
<button type="button" class="btn btn-warning">警告按钮</button><!-- 表示一个危险的或潜在的负面动作 -->
<button type="button" class="btn btn-danger">危险按钮</button><!-- 并不强调是一个按钮，看起来像一个链接，但同时保持按钮的行为 -->
<button type="button" class="btn btn-link">链接按钮</button></body>
按钮大小
<p>
<button type="button" class="btn btn-primary btn-xs">
特别小的原始按钮
</button>
<button type="button" class="btn btn-default btn-xs">
特别小的按钮
</button>
</p>
<p>
<button type="button" class="btn btn-primary btn-lg btn-block">
块级的原始按钮
</button>
<button type="button" class="btn btn-default btn-lg btn-block">
块级的按钮
</button>
</p>
按钮状态
激活和禁用两种状态
<button type="button" class="btn btn-default btn-lg active">
激活按钮
</button><button type="button" class="btn btn-primary btn-lg active">
激活的原始按钮
</button><p>
<button type="button" class="btn btn-default btn-lg">
默认按钮
</button>
<button type="button" class="btn btn-default btn-lg" disabled="disabled">
禁用按钮
</button>
</p><p>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="btn btn-default btn-lg" role="button">
链接
</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="btn btn-default btn-lg disabled" role="button">
禁用链接
</a>
</p>
按钮class可以用在如下标签
<a class="btn btn-default" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" role="button">链接</a>
<button class="btn btn-default" type="submit">按钮</button>
<input class="btn btn-default" type="button" value="输入">
<input class="btn btn-default" type="submit" value="提交">
二、按钮组
Class 描述
.btn-group该 class 用于形成基本的按钮组。在 .btn-group 中放置一系列带有 class .btn 的按钮。
.btn-toolbar该 class 有助于把几组 <div class="btn-group"> 结合到一个 <div class="btn-toolbar"> 中，一般获得更复杂的组件。
.btn-group-lg, .btn-group-sm, .btn-group-xs这些 class 可应用到整个按钮组的大小调整，而不需要对每个按钮进行大小调整。
.btn-group-vertical该 class 让一组按钮垂直堆叠显示，而不是水平堆叠显示。
<div class="btn-group btn-group-lg">
<button type="button" class="btn btn-default">按钮 1</button>
<button type="button" class="btn btn-default">按钮 2</button> <div class="btn-group">
<button type="button" class="btn btn-default dropdown-toggle"
data-toggle="dropdown">
下列
<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下拉链接 1</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下拉链接 2</a></li>
</ul>
</div>
</div>
<div class="btn-toolbar" role="toolbar">
<div class="btn-group btn-group-lg" style="margin-right: 20px;">
<button type="button" class="btn btn-default">按钮 1</button>
<button type="button" class="btn btn-default">按钮 2</button>
<button type="button" class="btn btn-default">按钮 3</button>
</div>
<div class="btn-group-vertical">
<button type="button" class="btn btn-default">按钮 1</button>
<button type="button" class="btn btn-default">按钮 2</button> <div class="btn-group-vertical">
<button type="button" class="btn btn-default dropdown-toggle"
data-toggle="dropdown">
下拉
<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下拉链接 1</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下拉链接 2</a></li>
</ul>
</div>
</div>
</div>
上拉菜单
<div class="btn-group dropup">
<button type="button" class="btn btn-default dropdown-toggle btn-lg"
data-toggle="dropdown">
默认 <span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu">
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >功能</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >另一个功能</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >其他</a></li>
<li class="divider"></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >分离的链接</a></li>
</ul>
</div>
<div class="btn-group">
<button type="button" class="btn btn-primary dropdown-toggle btn-sm"
data-toggle="dropdown">
原始 <span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu">
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >功能</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >另一个功能</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >其他</a></li>
<li class="divider"></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >分离的链接</a></li>
</ul>
</div>
<div class="btn-group">
<button type="button" class="btn btn-success dropdown-toggle btn-xs"
data-toggle="dropdown">
成功 <span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu">
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >功能</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >另一个功能</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >其他</a></li>
<li class="divider"></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >分离的链接</a></li>
</ul>
</div>
三、图片
- .img-rounded：添加 border-radius:6px 来获得图片圆角。
- .img-circle：添加 border-radius:500px 来让整个图片变成圆形。
- .img-thumbnail：添加一些内边距（padding）和一个灰色的边框。
<img src="/wp-content/uploads/2014/06/download.png" class="img-rounded">
<img src="/wp-content/uploads/2014/06/download.png" class="img-circle">
<img src="/wp-content/uploads/2014/06/download.png" class="img-thumbnail">
