【发布时间】：2020-12-31 14:39:38
【问题描述】：
我想调整两个元素的对齐方式：左侧导航和主要内容 div 相互重叠。我对它们没有一些特定的条件，它应该在列中彼此相邻而不重叠。
这里是导航和scrollspy的代码。您必须运行 sn-p 并使用完整页面链接才能查看内容。
$(function ()
{
$('[data-toggle="popover"]').popover()
})/* CSS FOR SCROLLSPY */
body
{
position: relative;
}
ul.nav-pills.flex-column
{
top: 20px;
position: fixed;
}
div.col-8 div
{
height: 500px;
margin-top: 50px;
}<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css" integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">
<body data-spy="scroll" data-target="#myScrollspy" data-offset="1">
<nav class="navbar navbar-expand-lg navbar-dark">
<a class="navbar-brand" href="#">
<img src="images/logo.png" alt="logo" style="width:50px;">
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav nav nav-pills">
<li class="nav-item">
<a class="nav-link" href="#">Home</a>
</li>
<li class="nav-item active">
<a class="nav-link active" href="#">About author</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">CCNA 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">CCNA 2</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#" data-toggle="popover" title="CCNA 3"
data-content="This course is already in progress. Stay tuned.">CCNA 3</a>
</li>
</ul>
</div>
</nav>
<div class="d-none d-xl-block col-xl-2 bd-toc">
<div class="container-fluid">
<div class="row">
<nav class="col-sm-3 col-4" id="myScrollspy">
<ul class="nav nav-pills flex-column">
<li class="nav-item">
<a class="nav-link active" href="#section1">Section 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#section2">Section 2</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#section3">Section 3</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#">Section 4</a>
<div class="dropdown-menu">
<a class="dropdown-item" href="#section41">Link 1</a>
<a class="dropdown-item" href="#section42">Link 2</a>
</div>
</li>
</ul>
</nav>
<div class="col-sm-9 col-8">
<div id="section1" class="bg-success">
<h1>Section 1</h1>
<p>Try to scroll this section and look at the navigation list while scrolling!</p>
</div>
<div id="section2" class="bg-warning">
<h1>Section 2</h1>
<p>Try to scroll this section and look at the navigation list while scrolling!</p>
</div>
<div id="section3" class="bg-secondary">
<h1>Section 3</h1>
<p>Try to scroll this section and look at the navigation list while scrolling!</p>
</div>
<div id="section41" class="bg-danger">
<h1>Section 4-1</h1>
<p>Try to scroll this section and look at the navigation list while scrolling!</p>
</div>
<div id="section42" class="bg-info">
<h1>Section 4-2</h1>
<p>Try to scroll this section and look at the navigation list while scrolling!</p>
</div>
</div>
</div>
</div>
</div>【问题讨论】：
标签： html css bootstrap-4 scrollspy