H5 responsive development responsive navigation bar (2)
Collapsible navigation bar
We wrote the navigation bar in the previous section, but we will find that although the navigation bar is It has been retracted, but the filled-in navigation columns are no longer visible when the page is reduced.
This is what the normal display looks like
When zoomed out
Our navigation column has disappeared, how should we solve it.
Create a collapsible column:
Use the navbar-toggle method that comes with the plug-in to operate
<button type="button"class="navbar-toggle"data-toggle="collapse" data-target="#navbar-collapse"> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button>
<span class="icon-bar"></span>
One statement represents one line, three statements represents three lines, the effect is as follows
##In this way, our navigation bar is complete.
Difficulties in this chapter:
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1, user-scalable=no">
<title>PHP中文网</title>
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css">
<style>
.logo{
padding: 0;
}
</style>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<a href="#" class="navbar-brand logo" ><img src="https://img.php.cn/upload/course/000/000/004/5819475ea4910787.png" height="50" alt="PHP中文网"></a>
<button type="button"class="navbar-toggle"data-toggle="collapse" data-target="#navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse"id="navbar-collapse">
<ul class="nav navbar-nav navbar-right daohang " >
<li class="active"><a href="#"><span class="glyphicon glyphicon-home"></span> 首页</a></li>
<li><a href="#"><span class="glyphicon glyphicon-bookmark"></span> 资讯</a></li>
<li><a href="#"><span class="glyphicon glyphicon-fire"></span> 实例</a></li>
<li><a href="#"><span class="glyphicon glyphicon-envelope"></span> 关于我们</a></li>
</ul>
</div>
</div>
</nav>
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<script src="http://cdn.bootcss.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script type="text/javascript">
</script>
</body>
</html>
