html - Bootstrap 4 navbar 固定顶部问题:为什么它会创建一个空白区域
问题描述
嗨,我在导航栏中遇到了一个问题,它创建了一个空白:截图 html 代码:
<div class="header">
<div class="overlay"></div>
<nav class="navbar fixed-top navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Creative Agency</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Watch Video</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Demo Pages
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Creative Agency</a>
<a class="dropdown-item" href="#">Travel Agency</a>
</div>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Blocks
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Menu Pages</a>
<a class="dropdown-item" href="#">Haeders</a>
<a class="dropdown-item" href="#">Pages</a>
<a class="dropdown-item" href="#">Images & Videos</a>
<a class="dropdown-item" href="#">Team</a>
<a class="dropdown-item" href="#">Counters</a>
</div>
</li>
</ul>
</div>
<ul class="social-links list-unstyled">
<li><a href="#"><i class="fab fa-twitter"></i></a></li>
<li><a href="#"><i class="fab fa-facebook-f"></i></a></li>
<li><a href="#"><i class="fab fa-instagram"></i></a></li>
</ul>
</nav>
<div class="container">
<div class="heading text-center">
<h1>We are creative agency</h1>
<p>Our professional team of designers will help you to create a unique image of your company, which will distinguish it from competitors and attract new customers.</p>
</div>
</div>
</div>
我怎样才能使导航栏固定(在顶部)而不会出现这个问题!
我使用引导程序 4
注意:为 body 添加 padding-top 并不能解决这个问题!
解决方案
我通过addign解决了这个问题
padding-top: 48px;
到头!
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