我如何将 .middle div 上的图像显示到全屏，我在右侧图像的末尾有一点空白。我正在使用 bootstrap 3 和 css 和 html 中间 div 中的图像当我使用行类时，它并没有占用整个空间。我已经包含了 css 和 html 代码。
#content{
text-align: center;
padding-top: 25%;
}
.middle {
background-image: url(https://images.unsplash.com/photo-1415369629372-26f2fe60c467);
background-size: cover;
background-position: center;
background-repeat: no-repeat;
height: 700px;
font-family:Lato;
color: white;
}
html{
height: 100%;
}
h1{
font-weight: 700;
font-size: 5em;
}
hr{
width: 400px;
border-top:1px solid #f8f8f8;
border-bottom: :1px solid rgba(0,0,0,0.2);
}
a{
display: block;
}<!DOCTYPE html>
<html>
<head>
<title>Purfect match</title>
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="app.css">
<link href="https://fonts.googleapis.com/css?family=Lato:400,700" rel="stylesheet" type="text/css">
<script defer src="https://use.fontawesome.com/releases/v5.0.8/js/all.js"></script>
</head>
<body>
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed " data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a href="#" class="navbar-brand"><span class="glyphicon glyphicon-fire"></span> Purfect Match </a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
<li><a href="#">Pets For You</a></li>
<li><a href="#">Blog</a></li>
<li><a href="#">Careers</a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Sign in <i class="fas fa-user-plus"></i></a></li>
<li><a href="#">Log in <i class="fas fa-user"></i></a></li>
</ul>
</div>
</div>
</nav>
<div class="middle">
<div class="container">
<div class="row">
<div class="col-lg-12">
<div id="content">
<h1>Perffect match</h1>
<h3>The Only Human-feline dating app</h3>
<hr>
<button class="btn btn-default btn-lg"><i class="fas fa-paw"></i> Get Started</button>
</div>
</div>
</div>
</div>
</div>
<div class="row">
<div class="col-lg-4">
<a>About</a>
<a>Contact</a>
<button class="btn btn-default btn-lg"><i class="fas fa-paw"></i> Get Started</button>
</div>
<div class="col-lg-4">
<a>Services</a>
<a>conformation</a>
<button class="btn btn-default btn-lg"><i class="fas fa-paw"></i> Get Started</button>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.3.1.js" integrity="sha256-2Kok7MbOyxpgUVvAk/HJ2jigOSYS2auK4Pfzbm7uH60="
crossorigin="anonymous"></script>
<script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
</body>
</html>最佳答案
问题不是来自您的背景图像，而是来自您最后的 <div class="row">
你必须把bootstrap row在类为 container 的元素内或 container-fluid
尝试将最后一个 block 替换为:
<div class="container">
<div class="row">
<div class="col-lg-4">
<a>About</a>
<a>Contact</a>
<button class="btn btn-default btn-lg"><i class="fas fa-paw"></i> Get Started</button>
</div>
<div class="col-lg-4">
<a>Services</a>
<a>conformation</a>
<button class="btn btn-default btn-lg"><i class="fas fa-paw"></i> Get Started</button>
</div>
</div>
</div>
关于html - 如何在特定 div 的完整背景上显示图像？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49221367/