我试图使用Flexbox在我的Bootsrap Carousel中间添加一个圆形div。我还希望旋转木马背景能够覆盖100vh高度和100％宽度的页面。
我遇到的问题是圆圈出现在页面底部而不是直接在中间。我已经使用top和margin-top在页面中居中，但我想使用Flexbox使其完美地位于页面的中心。此外，背景图片从不覆盖整个页面
非常感谢任何帮助
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="style.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://fonts.googleapis.com/css?family=Muli:200,300,400" rel="stylesheet">
<script src="app.js"></script>
</head>
<body>
<div id="fullpage">
<div id="process" class="vertical-center">
<div id="processCarousel" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#processCarousel" data-slide-to="1" class="active"></li>
<li data-target="#processCarousel" data-slide-to="2"></li>
<li data-target="#processCarousel" data-slide-to="3"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner ">
<div class="item active ">
<div class="process-container">
<img src="https://images.pexels.com/photos/127673/pexels-photo-127673.jpeg?auto=compress&cs=tinysrgb&h=350" style="object-fit: cover; height:100vh; width:100%;">
<div class="vertical-center">
<div class="circle vertical-center">
<div class="circle-text">
<h1>Test</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Debitis, dolore?</p>
</div>
</div>
</div>
</div>
</div>
<div class="item">
<div class="process-container">
<img src="http://worldlandforms.com/landforms/wp-content/uploads/2015/03/Beach-1024x683.jpg" style="object-fit: cover; height:100vh; width:100%;">
<div class="vertical-center">
<div class="circle vertical-center">
<div class="circle-text">
<h1>Test2</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Debitis, dolore?</p>
</div>
</div>
</div>
</div>
</div>
<div class="item">
<div class="process-container">
<img src="http://www.ucl.ac.uk/european-institute/events/2016-17/Ocean.png" style="object-fit: cover; height:100vh; width:100%;">
<div class="vertical-center">
<div class="circle vertical-center">
<div class="circle-text">
<h1>Test3</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Debitis, dolore?</p>
</div>
</div>
</div>
</div>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#processCarousel" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#processCarousel" data-slide="next">
<span class="glyphicon glyphicon-chevron-right"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</div>
</body><div id="mainContent" class="row">
<div class="valign-wrapper">
<div id="root" class="col s12 xl l6"></div>
</div>
</div>
答案 0 :(得分：2)
试试这个。这对你有帮助。
#fullpage {
height:100vh;
width:100%;
}
.vertical-center{
display: flex;
justify-content: center;
align-items: center;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
width: 100%;
}
.circle{
background-color: #ff9933;
z-index: 300;
height: 200px;
width:200px;
border-radius: 50%;
}
.process-container {
position: relative;
height: 100vh;
width: 100%;
background-repeat: no-repeat;
background-position: center center;
background-size: cover;
}
.circle-text {
text-align: center;
color: white;
font-family: 'Muli', sans-serif;
font-weight: 200;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="style.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://fonts.googleapis.com/css?family=Muli:200,300,400" rel="stylesheet">
<script src="app.js"></script>
</head>
<body>
<div id="fullpage">
<div id="process">
<div id="processCarousel" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#processCarousel" data-slide-to="1" class="active"></li>
<li data-target="#processCarousel" data-slide-to="2"></li>
<li data-target="#processCarousel" data-slide-to="3"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner ">
<div class="item active ">
<div class="process-container" style="background-image: url('https://images.pexels.com/photos/127673/pexels-photo-127673.jpeg?auto=compress&cs=tinysrgb&h=350')">
<div class="vertical-center">
<div class="circle">
<div class="circle-text">
<h1>Test</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Debitis, dolore?</p>
</div>
</div>
</div>
</div>
</div>
<div class="item">
<div class="process-container" style="background-image: url('http://worldlandforms.com/landforms/wp-content/uploads/2015/03/Beach-1024x683.jpg')">
<div class="vertical-center">
<div class="circle">
<div class="circle-text">
<h1>Test2</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Debitis, dolore?</p>
</div>
</div>
</div>
</div>
</div>
<div class="item">
<div class="process-container" style="background-image: url('http://www.ucl.ac.uk/european-institute/events/2016-17/Ocean.png')">
<div class="vertical-center">
<div class="circle">
<div class="circle-text">
<h1>Test3</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Debitis, dolore?</p>
</div>
</div>
</div>
</div>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#processCarousel" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#processCarousel" data-slide="next">
<span class="glyphicon glyphicon-chevron-right"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</div>
</body>