Bootstrap Carousel li 项目活动类不工作

Question

我获取了 bootstrap 4 carousel 的代码，然后将其拆分为 2 个 cols，我这样做是因为我需要 carousel 指示器位于其他位置而不是 carousel 内部（默认情况下）。

这里的问题是轮播运行良好（至少在更改图像的部分）它只是“活动”类，不会更改为任何其他 li 项目。

HTML

<div class="row mx-0">
        <div class="col-lg-3 col-md-3 col-sm-12 px-5">
            <h2 class="primary-color text-center text-uppercase" id="nombre-caso">Name Image</h2>
            <h3 id="descripcion-caso" class="primary-color text-center">Description Image</h3>
        </div>
        <div class="col-lg-1 col-md-1 col-sm-12">
            <ol class="list-unstyled d-lg-block d-md-block d-flex" id="carousel-indicators">
                <li data-target="#myCarousel" data-slide-to="0" class="active" style="margin-top:0;">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="1">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="2">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="3">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="4">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="5">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="6">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="7">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="8">
                    <i class="fas fa-circle"></i>
                </li>
                <li data-target="#myCarousel" data-slide-to="9">
                    <i class="fas fa-circle"></i>
                </li>
            </ol>
        </div>
        <div class="col-lg-8 col-md-8 col-sm-12 px-0">
            <div class="slide-wrapper">
                <div class="container" id="carousel-container">
                    <div id="myCarousel" class="carousel slide" data-ride="carousel">
                        <!-- Wrapper for slides -->
                        <div class="carousel-inner">
                            <div class="carousel-item active">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_01_harley.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_02_freightliner.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_03_loarca.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_04_automotriz_bajio.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_05_almacenes.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_06_bodegas_industriales.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_07_residencial_queretaro.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_08_secundaria_ignacio_altamirano.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_09_oficinas_icsi.jpg)"></div>
                            </div>
                            <div class="carousel-item">
                                <div class="fill" style="background-image: url(img/casos-exito/cob_galeria_10_casa_zibata.jpg)"></div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

CSS

.carousel-inner,.carousel,.carousel-item,.container#carousel-container,.fill {
    height:100%;
    min-height:700px;
    width:100%;
    background-position:center center;
    background-size:cover;
}
.slide-wrapper{display:inline;}
.slide-wrapper .container{padding:0;}

/*------------------------------ vertical bootstrap slider----------------------------*/
.carousel-inner> .carousel-item.carousel-item-next ,
.carousel-inner > .carousel-item.active.carousel-item-right{ 
    transform: translate3d(0, 100%, 0); -webkit-transform: translate3d(0, 100%, 0); -ms-transform: translate3d(0, 100%, 0); -moz-transform: translate3d(0, 100%, 0); -o-transform: translate3d(0, 100%, 0);  top: 0;

}
.carousel-inner > .carousel-item.carousel-item-prev ,
.carousel-inner > .carousel-item.active.carousel-item-left{ 
    transform: translate3d(0,-100%, 0); -webkit-transform: translate3d(0,-100%, 0);  -moz-transform: translate3d(0,-100%, 0);-ms-transform: translate3d(0,-100%, 0); -o-transform: translate3d(0,-100%, 0); top: 0;

}
.carousel-inner > .carousel-item.next.carousel-item-left ,
.carousel-inner > .carousel-item.carousel-item-prev.carousel-item-right ,
.carousel-inner > .carousel-item.active{
    transform:translate3d(0,0,0); -webkit-transform:translate3d(0,0,0);-ms-transform:translate3d(0,0,0);; -moz-transform:translate3d(0,0,0); -o-transform:translate3d(0,0,0); top:0;

}
/*------------------------------- vertical carousel indicators ------------------------------*/
#carousel-indicators li{
    margin: 35px 0;
    color: gray;
}

#carousel-indicators li.active i{
    color: var(--primaryColor);
}

我只想更改活动点的颜色，以在我的页面上显示一些良好的用户体验。

Answer 1

这可以用最少的 css 轻松实现；您的关键是在轮播 div 中包含两个部分（“指标部分”和“图像部分”）（这是具有 id='myCarousel' 的 div；这样您将获得默认功能，包括自动幻灯片，您可以在其中看到 'active' 类也被应用。

在下面工作sn-p：

/* Make the image fully responsive */

.carousel-inner img {
  width: 100%;
  height: 100%;
}

.carousel-indicators {
  display: block !important;
  height: 90% !important;
}

.carousel-indicators li {
  background-color: red !important;
  width: 10px !important;
  height: 10px !important;
  margin: 40% !important;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>

<div class='container-fluid'>
  <h2>Demo Carousel</h2>
  <div id="demo" class="carousel slide" data-ride="carousel">
    <div class='row'>

      <div class='col-lg-1 col-md-1 col-sm-1 col-1'>
        <!-- Indicators -->
        <ul class="carousel-indicators">
          <li data-target="#demo" data-slide-to="0" class="active"></li>
          <li data-target="#demo" data-slide-to="1"></li>
          <li data-target="#demo" data-slide-to="2"></li>
          <li data-target="#demo" data-slide-to="3"></li>
        </ul>
      </div>

      <div class='col-lg-11 col-md-11 col-sm-11 col-11'>
        <!-- The slideshow -->
        <div class="carousel-inner">
          <div class="carousel-item active">
            <img src="https://www.w3schools.com/bootstrap4/la.jpg" alt="Los Angeles" width="1100" height="500">
          </div>
          <div class="carousel-item">
            <img src="https://www.w3schools.com/bootstrap4/chicago.jpg" alt="Chicago" width="1100" height="500">
          </div>
          <div class="carousel-item">
            <img src="https://www.w3schools.com/bootstrap4/ny.jpg" alt="New York" width="1100" height="500">
          </div>
          <div class="carousel-item">
            <img src="https://www.akberiqbal.com/Jumbo.jpg" alt="Akber Iqbal" width="1100" height="500">
          </div>
        </div>
      </div>

    </div>
  </div>
</div>

注意：我必须将 !important 放在堆栈溢出代码 sn-p 上的每个属性上，因为它会在 bootstrap.css 之前加载自定义 CSS - 在您的实际代码中，放置 @987654326加载bootstrap.css 后@ 块，你不必写!important；