我也用bootstrap-4制作了导航栏粘性顶部和scrollspying。有一些href标记与body.s的某个部分相关联。我的问题是，当我单击某个菜单项时，侦听效果很好，但导航栏与目标部分重叠。 我的导航栏高度为95px，我也将data-offset设置为“ 95”，但问题仍然没有解决。我想让所有部分都在导航栏非常快的情况下。我该怎么做？ 这是我的代码...
<body data-spy="scroll" data-target="#spy" data-offset="105">
<section>
<div class="header_top container">
<p class="pt-sm-2">
<span>Call Us: <a href="tel:+8801797944174">+8801797944174</a></span>
<span class="pl-sm-5 d-block d-sm-inline">Email Us: <a href="mailto:jibonerasa9@gmail.com">mdabubased@gmail.com</a></span>
</p>
<form class="form-inline float-right" action="" method="">
<div class="input-group">
<input type="text" class="form-control" placeholder="">
<div class="input-group-append">
<button type="button" class="btn"><img src="images/searchicon.png" alt=""></button>
</div>
</div>
</form>
</div>
</section>
<header class="sticky-top">
<div class="nav_bg" id="spy">
<nav class="navbar navbar-expand-md justify-content-between container">
<a class="navbar-brand logo" href="javascript:voild(0)"><h1>Allrounder</h1></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"><i class="fas fa-bars text-white"></i></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavAltMarkup">
<div class="navbar-nav ml-auto text-uppercase">
<a class="nav-item nav-link active" href="#shout">HOMEPAGE<br><span>test text here</span></a>
<a class="nav-item nav-link" href="#latest_work">STYLE DEMO<br><span>test text here</span></a>
<a class="nav-item nav-link" href="#content1">full width<br><span>test text here</span></a>
<a class="nav-item nav-link" href="#content">portfolio<br><span>test text here</span></a>
<a class="nav-item nav-link" href="#content2">gallery<br><span>test text here</span></a>
<a class="nav-item nav-link" href="#footer">dropdown<br><span>test text here</span></a>
</div>
</div>
</nav>
</div>
</header>