Bootstrap 页面标题
Bootstrap创建了一个HTML组件用作页面标题。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Chapter 3</h1>
</div>
</div>
</body>
</html>页面副标题
要在页面标题旁边添加一个副标题，我们可以将它放在同一个<h1>包裹在<small> </small>标签内。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Chapter 3 <small>Exploring Bootstrap Components </small></h1>
</div>
</div>
</body>
</html>标题中的较小文本
我们可以使用带有.small类的<small>标签或<span>标签来显示任何标题的次要文本中的更小、更轻的变体。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<style type="text/css">
.bs-example{
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<h1>h1. Bootstrap heading <small>Secondary text</small></h1>
<h2>h2. Bootstrap heading <small>Secondary text</small></h2>
<h3>h3. Bootstrap heading <small>Secondary text</small></h3>
<h4>h4. Bootstrap heading <small>Secondary text</small></h4>
<h5>h5. Bootstrap heading <small>Secondary text</small></h5>
<h6>h6. Bootstrap heading <small>Secondary text</small></h6>
<hr>
<h1>h1. Bootstrap heading <span class="small">Secondary text</span></h1>
<h2>h2. Bootstrap heading <span class="small">Secondary text</span></h2>
<h3>h3. Bootstrap heading <span class="small">Secondary text</span></h3>
<h4>h4. Bootstrap heading <span class="small">Secondary text</span></h4>
<h5>h5. Bootstrap heading <span class="small">Secondary text</span></h5>
<h6>h6. Bootstrap heading <span class="small">Secondary text</span></h6>
</div>
</body>
</html>Bootstrap标题样式
我们可以按照在简单HTML文档中定义的相同方式定义所有HTML标题，从<h1>到<h6>。
我们可以使用其他元素上的标题类 .h1 到 .h6 以将元素文本上的样式应用于标题。
<!DOCTYPE HTML>
<html>
<head>
<link href="//www.w3cschool.cn/statics/plugins/bootstrapold/css/bootstrap.min.css" rel="stylesheet">
</head>
<body style="margin:20px;">
<h1>h1. Bootstrap heading</h1>
<h2>h2. Bootstrap heading</h2>
<h3>h3. Bootstrap heading</h3>
<h4>h4. Bootstrap heading</h4>
<h5>h5. Bootstrap heading</h5>
<h6>h6. Bootstrap heading</h6>
<hr>
<div class="h1">h1. Bootstrap heading</div>
<div class="h2">h2. Bootstrap heading</div>
<div class="h3">h3. Bootstrap heading</div>
<div class="h4">h4. Bootstrap heading</div>
<div class="h5">h5. Bootstrap heading</div>
<div class="h6">h6. Bootstrap heading</div>
</body>
</html>