我得到了切换 - 折叠煎饼按钮,适用于小屏幕,但当菜单展开时,它会覆盖部分屏幕。如何让菜单扩展到覆盖屏幕?我试着降低身体,但是效果不好。
<!doctyp html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<style>
body { padding-top:50px; }
</style>
</head>
<body>
<header>
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<!-- The button that shows when the width is too short -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#collapse" aria-expanded="false" aria-controls="collapse">
<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" ><span class="subhead"></span>Project 1</a>
</div>
<!-- The navigation menu. It collapses when the width is too short -->
<div id="collapse" class="collapse navbar-collapse">
<ul class="nav navbar-nav navbar-right">
<li><a href="#browse">browse</a></li>
<li><a href="#why">why</a></li>
<li><a href="#about">about</a></li>
</ul>
</div>
</div>
</nav>
</header>
<section>
<h3>Project 1 incomplete</h3>
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p>
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p>
</section>
</body>
</html>
答案 0 :(得分:1)
由于你没有提到你需要固定的顶级行为,所以没有这种行为就行了。
如果您想要修复顶级行为,则需要通过JavaScript进行管理。
如果对您有帮助,请检查以下代码段并发表您的评论:
mat[i].length
mat[0].length