引导轮播 Z 索引

Question

我的 Bootstrap Carousel 出现了一些问题。我需要一个带有 3 张幻灯片、3 张图片的轮播，并且每张幻灯片的中间必须有一个搜索栏和一个标题。 Carousel 上显示的图像需要在其顶部有一个深色叠加层。

问题是，搜索栏和标题显示在覆盖 div 下方，并且 z-indexing 不起作用。 Z 索引适用于轮播控件。奇怪吗？

希望有人能提供帮助！

这是 HTML

 <div data-ride="carousel" class="carousel slide" id="carousel-1">

    <div role="listbox" class="carousel-inner">
        <div class="item active">
            <img src="assets/img/slide-1.jpg" alt="Slide Image" class="w-100" />
        <div class="search-bar-container">
            <p class="carousel-text">DUMMY TEXT 1</p>
                <div class="dropdown"><button class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false" type="button">SVE <span class="caret"></span></button>
        <ul role="menu" class="dropdown-menu">
            <li role="presentation"><a href="#">First Item</a></li>
            <li role="presentation"><a href="#">Second Item</a></li>
            <li role="presentation"><a href="#">Third Item</a></li>
        </ul>
    </div><input type="text" class="seach-bar-input" placeholder="PLACEHOLDER" /><button class="btn btn-default search-bar-seach-button" type="button"><i class="fa fa-search fa-lg"></i></button></div>
        </div>
        <div class="item"><img src="assets/img/slide-2.jpg" alt="Slide Image" class="w-100" />
        <div class="search-bar-container">
    <p class="carousel-text">DUMMY TEXT 2</p>
    <div class="dropdown"><button class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false" type="button">SVE <span class="caret"></span></button>
        <ul role="menu" class="dropdown-menu">
            <li role="presentation"><a href="#">First Item</a></li>
            <li role="presentation"><a href="#">Second Item</a></li>
            <li role="presentation"><a href="#">Third Item</a></li>
        </ul>
    </div><input type="text" class="seach-bar-input" placeholder="PLACEHOLDER" /><button class="btn btn-default search-bar-seach-button" type="button"><i class="fa fa-search fa-lg"></i></button></div>

        </div>
        <div class="item"><img src="assets/img/slide-3.jpg" alt="Slide Image" class="w-100" />
        <div class="search-bar-container">
    <p class="carousel-text">DUMMY TEXT 3</p>
    <div class="dropdown"><button class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false" type="button">SVE <span class="caret"></span></button>
        <ul role="menu" class="dropdown-menu">
            <li role="presentation"><a href="#">First Item</a></li>
            <li role="presentation"><a href="#">Second Item</a></li>
            <li role="presentation"><a href="#">Third Item</a></li>
        </ul>
    </div><input type="text" class="seach-bar-input" placeholder="PLACEHOLDER" /><button class="btn btn-default search-bar-seach-button" type="button"><i class="fa fa-search fa-lg"></i></button></div>

        </div>
    </div>
    <div><a href="#carousel-1" role="button" data-slide="prev" class="left carousel-control"><i class="glyphicon glyphicon-chevron-left"></i><span class="sr-only">Previous</span></a><a href="#carousel-1" role="button" data-slide="next" class="right carousel-control"><i class="glyphicon glyphicon-chevron-right"></i><span class="sr-only">Next</span></a></div>
    <ol
        class="carousel-indicators">
        <li data-target="#carousel-1" data-slide-to="0" class="active"></li>
        <li data-target="#carousel-1" data-slide-to="1"></li>
        <li data-target="#carousel-1" data-slide-to="2"></li>
        </ol>
</div>
    <div class="carousel-overlay"></div>

这是 CSS：

.carousel {
  height:600px;
  width:100%;
  background-size:cover;
  position:relative;
}

@media (max-width: 767px) {
  .carousel {
    height:350px;
    width:100%;
    position:relative;
  }
}

.carousel-inner {
  height:600px;
  width:100%;
}

.carousel-inner > .item > img, .carousel-inner > .item > a > img {
  display:block;
  height:auto;
  max-width:100%;
  line-height:1;
  width:100%;
}

@media (max-width: 767px) {
  .carousel-inner {
    height:350px;
    width:100%;
  }
}

.carousel-text {
  color:#ffffff;
  font-size:24px;
  margin-left:10%;
  margin-right:10%;
  font-weight:500;
  margin-bottom:50px;
}

@media (max-width: 767px) {
  .carousel-text {
    color:#ffffff;
    font-size:17px;
    margin-left:5%;
    margin-right:5%;
    font-weight:500;
    margin-bottom:25px;
  }
}

.carousel-overlay {
  height:600px;
  width:100%;
  top:75px;
  left:0;
  background-color:rgba(0,0,0,0.5);
  background-size:cover;
  position:absolute;
  z-index:10;
}

@media (max-width: 767px) {
  .carousel-overlay {
    height:350px;
    width:100%;
    top:70px;
    left:0;
    background-color:rgba(0,0,0,0.5);
    background-size:initial;
    position:absolute;
    z-index:100;
  }
}

.carousel-indicators {
  z-index:1000;
}

.carousel-indicators {
  display:none;
}

.carousel-control {
  z-index:1000;
}

@media (max-width: 767px) {
  .carousel-control {
    display:none;
  }
}

.search-bar-container {
  position:absolute;
  z-index:1000 !important;
  top:30%;
  left:10%;
  right:10%;
  text-align:center;
}

@media (max-width: 767px) {
  .search-bar-container {
    position:absolute;
    z-index:999999;
    top:25% !important;
    left:5% !important;
    right:5% !important;
    width:90% !important;
    text-align:center;
  }
}

@media (max-width: 991px) {
  .search-bar-container {
    position:absolute;
    z-index:999999;
    top:35%;
    left:10%;
    right:10%;
    width:80%;
    text-align:center;
  }
}

.search-bar-container .dropdown {
  display:inline-block;
  height:50px !important;
}

.seach-bar-input {
  height:51px;
  width:500px;
  border-left:none;
  border-right:none;
  border-color:#ddd;
  padding:12px;
}

@media (max-width: 767px) {
  .seach-bar-input {
    height:50px;
    width:60% !important;
    border-left:none;
    border-right:none;
    border-color:#ddd;
    padding:12px;
  }
}

@media (max-width: 991px) {
  .seach-bar-input {
    height:50px;
    width:65%;
    border-left:none;
    border-right:none;
    border-color:#ddd;
    padding:12px;
  }
}

Answer 1

您尝试!important 还是先为幻灯片设置Z-index: 0 然后Z-index: 1 等等？

Answer 2

.bgslider{
    position: absolute;
    left: 0px;
    top: 65px;
    z-index: -1;
    height: 100vh;
    width: 100%;
}

<!--Corasul slider opening-->
<div id="carouselExampleSlidesOnly" class="carousel slide bgslider" data-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active " data-interval="2000">
        <img src="../static/img/hero1.jpg" class="d-block w-100" alt="...">
    </div>

    <div class="carousel-item" data-interval="2000">
      <img src="../static/img/hero2.jpg" class="d-block w-100" alt="...">
     </div>

    <div class="carousel-item" data-interval="2000">
      <img src="../static/img/hero3.jpg" class="d-block w-100" alt="...">
      </div>

  </div>
</div>
<!--Corasul slider closing-->

Answer 3

我遇到了类似的问题，使用

.carousel-caption {
 position:top;
 top:-30px;
 }

容器的顶部内容被切断（在我看来像是 z-index 问题） 所以我尝试按时间顺序将父 div z-index 设置为 carousel-caption 具有最高值的点，以便显示它但仍然没有运气。

我的解决方案： 因为 .carousel-caption 类位置设置为绝对，所以我修改/删除了所有与 .carousel-caption 位置相关的 CSS 值：

.carousel-caption {
 position: relative!important;
 right:0!important;
 left:0!important;
 bottom:0!important;
 padding: 0px 0px!important;
 margin-top:-40px;
 }

我认为在你的代码中改变它可以让你完成覆盖效果等等......