class:
navbar-fixed-top 导航头部对其\
navbar-right 悬浮在右边 container 居中块\
&:focus 焦点\
&:hover
页面导航:
<!DOCTYPE html>
<html lang="Zn-cn">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title></title>
<link rel="stylesheet" href="./css/normalize.css"> <!--重置 -->
<link rel="stylesheet" href="./css/bootstrap.min.css">
<link rel="stylesheet" href="./css/index.css">
</head>
<body>
<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
<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">
<!-- 缩小后的按钮 -->
<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="#">HPIT学院</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right ">
<li class="">
<a href="#">首页</a>
</li>
<li>
<a href="#bbs">论坛</a>
</li>
<li>
<a href="#web">前端开发</a>
</li>
<li>
<a href="#new">最新课程</a>
</li>
<li>
<a href="#app">移动app</a>
</li>
<li>
<a href="#about">联系我们</a>
</li>
</ul>
</div>
</div>
</nav>
<script src="./js/jquery-3.3.1.min.js"></script>
<script src="./js/bootstrap.min.js"></script>
</body>
</html>
移动端导航:
container-fluid 大屏
col-md-10 col-md-offset-1 栅栏布局
text-center 文字居中
center-block 转块级居中
img-responsive 图片响应式布局(自适应)
css样式:
background-size: cover; (平铺)
box-shadow: 1px 1px 4px #ccc; (阴影)