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Teacher's comments：
Collection
Collection
利用Bootstrap来仿制Bootstrap中文网，其基本结构为：导航栏、巨幕、缩略图。其实就是组件之间的组合，再配合重写的css样式来达到想要的效果。在布局中可以不用栅格系统，用.container就可以了，因为每个组件都独占一行。
最繁琐就是导航栏了，类的数量有点多，总是记不住，要借助资料才可以。
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<link rel="stylesheet" href="../lib/dist/css/bootstrap.css">
<link rel="stylesheet" href="../css/font-awesome.css">
<script src="../lib/jquery.js"></script>
<script src="../lib/dist/js/bootstrap.js"></script>
<title>Bootstrap</title>
</head>
<body>
<!--导航条-->
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<!--导航条头部-->
<div class="navbar-header " >
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a href="" class="navbar-brand hidden-sm">Bootstrap中文网</a>
</div>
<!--导航折叠区-->
<div class="collapse navbar-collapse" id="navbar-collapse">
<ul class="nav navbar-nav">
<li class="hidden-sm"><a class="navbar-link" href="">Bootstrap2中文文档</a></li>
<li><a class="navbar-link" href="">Bootstrap3中文文档</a></li>
<li><a class="navbar-link" href="">Bootstrap4中文文档</a></li>
<li><a class="navbar-link" href="">less 教程</a></li>
<li><a class="navbar-link" href="">jQuery API</a></li>
<li><a class="navbar-link" href="">网站实例</a></li>
</ul>
<ul CLASS="nav navbar-nav navbar-right">
<li><a href="" class="navbar-link">关于</a></li>
</ul>
</div>
</div>
</div>
<!--巨幕-->
<div class="jumbotron text-center" style="background: linear-gradient(to top right, #060232 ,#6A3152);color: white;padding: 100px 0">
<div class="container">
<h1>Bootstrap</h1>
<h2>简洁、直观、强悍的前端开发框架，让web开发更迅速、简单</h2><br>
<p>
<a class="btn btn-primary btn-lg" href="">Bootstrap3中文文档(v3.3.7)</a>
</p>
<p>
<a href="">Bootstrap2中文文档(v2.3.2)</a>
</p>
</div>
</div>
<!--缩略图-->
<div class="container">
<div class="row">
<div class="col-lg-3">
<div class="thumbnail">
<a href="">
<img src="img/1.png" alt="">
</a>
<div class="caption">
<h3>
<a href="">优站精选<br><small>Bootstrap 网站实例</small></a>
</h3>
<P>Bootstrap 优站精选频道收集了众多基于 Bootstrap 构建、设计精美的、有创意的网站。</P>
</div>
</div>
</div>
<div class="col-lg-3">
<div class="thumbnail">
<a href="">
<img src="img/1.png" alt="">
</a>
<div class="caption">
<h3>
<a href="">优站精选<br><small>Bootstrap 网站实例</small></a>
</h3>
<P>Bootstrap 优站精选频道收集了众多基于 Bootstrap 构建、设计精美的、有创意的网站。</P>
</div>
</div>
</div>
<div class="col-lg-3">
<div class="thumbnail">
<a href="">
<img src="img/1.png" alt="">
</a>
<div class="caption">
<h3>
<a href="">优站精选<br><small>Bootstrap 网站实例</small></a>
</h3>
<P>Bootstrap 优站精选频道收集了众多基于 Bootstrap 构建、设计精美的、有创意的网站。</P>
</div>
</div>
</div>
<div class="col-lg-3">
<div class="thumbnail">
<a href="">
<img src="img/1.png" alt="">
</a>
<div class="caption">
<h3>
<a href="">优站精选<br><small>Bootstrap 网站实例</small></a>
</h3>
<P>Bootstrap 优站精选频道收集了众多基于 Bootstrap 构建、设计精美的、有创意的网站。</P>
</div>
</div>
</div>
</div>
</div>
<style>
.thumbnail{
max-width: 310px;
text-align: center;
display: block;
margin: 20px auto;
}
.jumbotron h1{
font-size: 100px;
}
.jumbotron p:last-child a{color: #999999;font-size: 14px}
.jumbotron p:last-child a:hover{color:white}
@media(max-width:600px) {
.jumbotron h1{font-size: 60px}
.jumbotron h2{font-size: 20px}
}
</style>
</body>
</html>点击 "运行实例" 按钮查看在线实例
