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首页 > 解决方案 > 当我添加导航栏时，我的内容下方会添加空格。我该如何删除这个？

html - 当我添加导航栏时，我的内容下方会添加空格。我该如何删除这个？

问题描述

只是创建一个练习登录页面。在我添加导航栏之前，一切看起来都很棒。一旦我添加了导航栏，它就会在侧面创建一个滚动条，当你向下滚动时，页面底部会出现这个空白。我想删除空白和滚动条。这是我的代码，谢谢

（背景图片）https://i.stack.imgur.com/jYNuY.jpg

body {
	color: white;
	background-image: url("background.jpg");
	background-repeat: no-repeat;
	background-size: cover;
	background-position: center;
	height: 100vh;
}

.container {
	height: 100vh;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}

#title {
	font-family: 'Lora', serif;
	font-size: 3em;
	text-shadow: 2px black;
}
<!DOCTYPE html>
<html>
<head>
	<title>bootstrap</title>

	<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">

	<link rel="stylesheet" type="text/css" href="style.css">

	<link href="https://fonts.googleapis.com/css?family=Lora:700" rel="stylesheet">
</head>
<body>

	<nav class="navbar navbar-dark bg-dark">
	  <a class="navbar-brand" href="#">Landing page</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 mr-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="#">Link</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">
	          Dropdown
	        </a>
	        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
	          <a class="dropdown-item" href="#">Action</a>
	          <a class="dropdown-item" href="#">Another action</a>
	          <div class="dropdown-divider"></div>
	          <a class="dropdown-item" href="#">Something else here</a>
	        </div>
	      </li>
	      <li class="nav-item">
	        <a class="nav-link disabled" href="#">Disabled</a>
	      </li>
	    </ul>
	    <form class="form-inline my-2 my-lg-0">
	      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
	      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
	    </form>
	  </div>
	</nav>


	<div class="container">
		<h1 id="title">The wait is over.</h1>
			<button type="button" class="btn btn-light">Find out more!</button>
	</div>

	<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
	<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
</body>
</html>

标签： htmlcssbootstrap-modalnavbar

解决方案

您可以做的是将类添加.fixed-top到导航栏

<nav class="navbar fixed-top navbar-dark bg-dark">

让我知道这是否对您有帮助！如果你想测试它，这里有一个 codepen。

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