我有这个Twitter Bootstrap代码
<div class='navbar navbar-fixed-top'>
<div class='navbar-inner'>
<div class='container'>
<a class='btn btn-navbar' data-target='.nav-collapse' data-toggle='collapse'>
<span class='icon-bar'></span>
<span class='icon-bar'></span>
<span class='icon-bar'></span>
</a>
<div class='nav-collapse'>
<ul class='nav'>
<li class='active'>
<a href='some_url'>My Home</a>
</li>
<li>
<a href='some_url'>Option 1 </a>
</li>
<li>
<a href='some_url'>Another option</a>
</li>
<li>
<a href='some_url'>Another option</a>
</li>
</ul>
</div>
</div>
</div>
</div>
但是,当我查看页面的开头时,导航栏阻止了页面顶部附近的某些内容。关于如何使它在查看页面顶部时将内容的其余部分降低的任何想法,以便使内容不会被导航栏阻止?