我一直在玩旋转木马，无需拉伸就可以使用图像。
我正在尝试在旋转木马中设置标题，因此它不会从图像中逃脱并与白色背景混合。
以下是代码：
body {
background-color: white;
}
.carousel-inner > .item {
height: 100vh;
}
.carousel-inner > .item > img {
position: absolute;
top: 50%;
left: 50%;
-webkit-transform: translate(-50%, -50%);
-ms-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
max-height: 800px;
width: auto;
}
.carousel-control.left,
.carousel-control.right {
background-image: none;
}<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<div class="container">
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
</ol>
<!-- inner -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="http://i.imgur.com/A83qNiV.jpg" alt="">
<div class="container">
<div class="carousel-caption">
<h1>One more for good measure.</h1>
<p class="lead">Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
<a class="btn btn-large btn-primary" href="#">Browse gallery</a>
</div>
</div>
</div>
<div class="item">
<img src="http://i.imgur.com/OlbCjdA.png" alt="">
</div>
<div class="item">
<img src="http://i.imgur.com/wwOoOIc.png" alt="">
<div class="container">
<div class="carousel-caption">
<h1>One more for good measure.</h1>
<p class="lead">Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
<a class="btn btn-large btn-primary" href="#">Browse gallery</a>
</div>
</div>
</div>
</div>
<!-- controls -->
<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
答案 0 :(得分：1)
在css中添加以下类
.carousel-caption {
background-color: #00F;
text-align: center;
top: 50%;
transform: translateY(-50%);
}
答案 1 :(得分：0)
感谢您的投入。 我找到了适合我需要的解决方案。
这是：
body {
background-color: white;
}
.carousel-inner > .item {
height: 100vh;
}
.carousel-inner > .item > img {
position: absolute;
top: 50%;
left: 50%;
-webkit-transform: translate(-50%, -50%);
-ms-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
max-height: 800px;
width: auto;
}
.carousel-control.left,
.carousel-control.right {
background-image: none;
}
.carousel-caption {
position: absolute;
top: 30%;
}
h1 {
font-size: 5.9vw;
}
h2 {
font-size: 3.0vh;
}
p {
font-size: 2vmin;
}<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<div class="container">
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
</ol>
<!-- inner -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="http://i.imgur.com/A83qNiV.jpg" alt="">
<div class="container">
<div class="carousel-caption">
<h1>One more for good measure.</h1>
<p class="lead">Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
<a class="btn btn-large btn-primary" href="#">Browse gallery</a>
</div>
</div>
</div>
<div class="item">
<img src="http://i.imgur.com/OlbCjdA.png" alt="">
</div>
<div class="item">
<img src="http://i.imgur.com/wwOoOIc.png" alt="">
<div class="container">
<div class="carousel-caption">
<h1>One more for good measure.</h1>
<p class="lead">Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
<a class="btn btn-large btn-primary" href="#">Browse gallery</a>
</div>
</div>
</div>
</div>
<!-- controls -->
<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
我使用了可调整大小的字体来完成它。
h1 {
font-size: 5.9vw;
}
h2 {
font-size: 3.0vh;
}
p {
font-size: 2vmin;
}