Question

我有一个Bootstrap轮播，在大屏幕上很好，但如果我减小屏幕尺寸，指示器会移动到图像下方，我会完全丢失标题文字。我肯定错过了什么。我希望图像上的指示符和文本与更大的屏幕一样。任何帮助表示赞赏...

<div class="container" id="index">
    <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>

  <!-- Wrapper for slides -->
  <div class="carousel-inner" role="listbox">
    <div class="item active">
    <div class="carousel-caption">
        <h3>Example headline</h3>
        <p>Example description</p>
      </div>
      <img src="img/lesson8-portfolioheroimage2.jpg" alt="...">

    </div>


    <div class="item">
      <img src="img/portfolioheroimage.jpg" alt="...">
      <div class="carousel-caption">
        <h3>Example headline</h3>
        <p>Example description</p>
      </div>
    </div>
    <div class="item">
      <img src="img/portfolioheroimage3.jpg" alt="...">
      <div class="carousel-caption">
        <h3>Example headline</h3>
        <p>Example description</p>
      </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>

Answer 1

这是因为当您调整屏幕尺寸时，旋转木马中的图像会根据其宽高比调整大小。

删除.carousel-control { margin: 200px 0; }，而.carousel-caption代替padding-bottom在bottom中提供%，并根据media queries中的要求进行调整。< / p>

同时添加此css

.carousel-inner .item{
    height: 100%;
}
.carousel-inner .item img {
    width: 100%;
    height: 100% !important;
    object-fit: cover;
}

＆＃13;

.carousel { margin-left: -15px; margin-right: -15px; }
.carousel-inner{ height: 400px; }
.carousel-caption { bottom: 30% !important; } 
.carousel-inner .item{
    height: 100%;
}
.carousel-inner .item img {
    width: 100%;
    height: 100% !important;
    object-fit: cover;
}

＆＃13;

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
  
</head>
<body>

<div class="container" id="index">
    <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>

  <!-- Wrapper for slides -->
  <div class="carousel-inner" role="listbox">
    <div class="item active">
    <div class="carousel-caption">
        <h3>Example headline</h3>
        <p>Example description</p>
      </div>
      <img src="http://placehold.it/200x200" alt="...">

    </div>


    <div class="item">
      <img src="http://placehold.it/200x200" alt="...">
      <div class="carousel-caption">
        <h3>Example headline</h3>
        <p>Example description</p>
      </div>
    </div>
    <div class="item">
      <img src="http://placehold.it/200x200" alt="...">
      <div class="carousel-caption">
        <h3>Example headline</h3>
        <p>Example description</p>
      </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>
</body>
</html>

＆＃13;

Answer 2

您应该调整CSS文件中的图像高度，而不是更改轮播项目的大小。更改轮播项目将在屏幕宽度达到80％时显示标题，但小于该宽度时它将消失。

img {
max-height: 600px;
}

Bootstrap图像轮播文本/指标在小屏幕上丢失

2 个答案: