小编tjj*_*j88的帖子

以下代码使用Bootstrap版本3完全正常.但是,由于升级到Bootstrap 4 Beta2,淡入淡出过渡不起作用.它只是跳转到下一个图像而不是平滑过渡:

HTML

<div id="carousel1" class="carousel fade" data-ride="carousel">
    <ol class="carousel-indicators">
      <li data-target="#carousel1" data-slide-to="0" class="active"></li>
      <li data-target="#carousel1" data-slide-to="1"></li>
      <li data-target="#carousel1" data-slide-to="2"></li>
    </ol>

    <div class="carousel-inner" role="listbox">
      <div class="item active"><img src="images/a.jpg" alt="First slide image" class="center-block">
        <div class="carousel-caption">
          <h3>First slide Heading</h3>
          <p>First slide Caption</p>
        </div>
      </div>
      <div class="item"><img src="images/b.jpg" alt="Second slide image" class="center-block">
        <div class="carousel-caption">
          <h3>Second slide Heading</h3>
          <p>Second slide Caption</p>
        </div>
      </div>
      <div class="item"><img src="images/c.jpg" alt="Third slide image" class="center-block">
        <div class="carousel-caption">
          <h3>Third slide Heading</h3>
          <p>Third slide Caption</p>
        </div>
      </div>
    </div>

    <a class="left …