<!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>index</title>
<link href="css/bootstrap.min.css" rel="stylesheet">
<!--[if lt IE 9]>
<script src="//cdn.bootcss.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="//cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
<style>
body{ padding-top: 50px; padding-bottom: 50px; }
/*轮播广告*/
.carousel{ height: 500px; margin-bottom: 60px; }
.carousel .item{ height: 500px; background-color: #000; }
.carousel .item img{ width: 100%; }
.carousel-caption{ z-index: 10; }
.carousel-caption p{ margin-bottom: 20px; font-size: 20px; line-height: 1.8; }
/*简介*/
.summary{ padding-left: 15px; padding-right: 15px; }
.summary .col-md-4 {
margin-bottom: 20px;
text-align: center;
}
hr.feature-divider{ margin: 40px 0; }
/*特性*/
.feature{ padding: 30px 0; }
.feature-heading{ font-size: 50px; color: #2a6496; }
.feature-heading .text-muted { font-size: 28px; }
/* 响应式布局 */
@media (max-width: 768px) {
.summary {
padding-right: 3px;
padding-left: 3px;
}
.carousel {
height: 300px;
margin-bottom: 30px;
}
.carousel .item {
height: 300px;
}
.carousel img {
min-height: 300px;
}
.carousel-caption p {
font-size: 16px;
line-height: 1.4;
}
.feature-heading {
font-size: 34px;
}
.feature-heading .text-muted {
font-size: 22px;
}
}
@media (min-width: 992px) {
.feature-heading {
margin-top: 120px;
}
}
</style>
</head>
<body>
<!-- 导航条 -->
<nav class="navbar navbar-inverse navbar-fixed-top" id="menu-nav">
<div class="container">
<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="#">现代浏览器</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#ad-carousel">综述</a></li>
<li><a href="#summary-container">简述</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">特点<span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#feature-tab" data-tab="tab-chrome">Chrome</a></li>
<li><a href="#feature-tab" data-tab="tab-firefox">Firefox</a></li>
<li><a href="#feature-tab" data-tab="tab-safari">Safari</a></li>
<li><a href="#feature-tab" data-tab="tab-opera">Opera</a></li>
<li><a href="#feature-tab" data-tab="tab-ie">IE</a></li>
</ul>
</li>
<li><a href="#" data-toggle="modal" data-target="#about">关于</a></li>
</ul>
</div>
</div>
</nav>
<!-- 滚动图片广告——carousel插件 -->
<div class="carousel slide" id="ad-carousel" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#ad-carousel" data-slide-to="0" class="active"></li>
<li data-target="#ad-carousel" data-slide-to="1"></li>
<li data-target="#ad-carousel" data-slide-to="2"></li>
<li data-target="#ad-carousel" data-slide-to="3"></li>
<li data-target="#ad-carousel" data-slide-to="4"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="images/chrome-big.jpg" alt="1 slide">
<div class="container">
<div class="carousel-caption">
<h1>Chrome</h1>
<p>Google Chrome,又称Google浏览器,是一个由Google(谷歌)公司开发的网页浏览器。</p>
<p><a class="btn btn-lg btn-primary" href="http://www.google.cn/intl/zh-CN/chrome/browser/"
role="button" target="_blank">点我下载</a></p>
</div>
</div>
</div>
<div class="item">
<img src="images/firefox-big.jpg" alt="2 slide">
<div class="container">
<div class="carousel-caption">
<h1>Firefox</h1>
<p>Mozilla Firefox,中文名通常称为“火狐”或“火狐浏览器”,是一个开源网页浏览器。</p>
<p><a class="btn btn-lg btn-primary" href="http://www.firefox.com.cn/download/" target="_blank"
role="button">点我下载</a></p>
</div>
</div>
</div>
<div class="item">
<img src="images/safari-big.jpg" alt="3 slide">
<div class="container">
<div class="carousel-caption">
<h1>Safari</h1>
<p>Safari,是苹果计算机的最新操作系统Mac OS X中的浏览器。</p>
<p><a class="btn btn-lg btn-primary" href="http://www.apple.com/cn/safari/" target="_blank"
role="button">点我下载</a></p>
</div>
</div>
</div>
<div class="item">
<img src="images/opera-big.jpg" alt="4 slide">
<div class="container">
<div class="carousel-caption">
<h1>Opera</h1>
<p>Opera浏览器,是一款挪威Opera Software ASA公司制作的支持多页面标签式浏览的网络浏览器。</p>
<p><a class="btn btn-lg btn-primary" href="http://www.opera.com/zh-cn" target="_blank"
role="button">点我下载</a></p>
</div>
</div>
</div>
<div class="item">
<img src="images/ie-big.jpg" alt="5 slide">
<div class="container">
<div class="carousel-caption">
<h1>IE</h1>
<p>Internet Explorer,简称 IE,是微软公司推出的一款网页浏览器。</p>
<p><a class="btn btn-lg btn-primary" href="http://ie.microsoft.com/" target="_blank"
role="button">点我下载</a></p>
</div>
</div>
</div>
</div>
<!-- Controls -->
<a class="left carousel-control" href="#ad-carousel" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">上一张</span>
</a>
<a class="right carousel-control" href="#ad-carousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">下一张</span>
</a>
</div>
<div class="container summary">
<!-- 简介——三栏布局 -->
<div class="row" id="summary-container">
<div class="col-md-4">
<img class="img-circle" src="images/chrome-logo-small.jpg" alt="chrome">
<h2>Chrome</h2>
<p>Google Chrome,又称Google浏览器,是一个由Google(谷歌)公司开发的网页浏览�