用图像中心和调整旋转木马标题Bootstrap

Question

我一直在玩转盘旋转，使其与图像一起工作，无需拉伸。

我试图在旋转木马内设置标题，所以它不会从图像中逃脱，并与白色背景混合。

下面是代码：

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>

Answer 1

感谢输入。 我找到了适合我需求的解决方案。

这就是：

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>

我已经使用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; 
} 

Answer 2

添加下面类中的CSS

.carousel-caption { 
    background-color: #00F; 
    text-align: center; 
    top: 50%; 
    transform: translateY(-50%); 
}