轮播图片正在堆叠，如何阻止它们堆叠？

Question

我正在尝试将最近的四张图片从数据库中提取到轮播中。这些图像作为轮播的一张幻灯片相互堆叠。我希望它们出现在四张单独的幻灯片上。

轮播代码：

<div id="display" class="carousel" data-ride="carousel">
    <!-- Indicators -->
    <ul class="carousel-indicators">
        <li data-target="#display" data-slide-to="0" class="active"></li>
        <li data-target="#display" data-slide-to="1"></li>
        <li data-target="#display" data-slide-to="2"></li>
        <li data-target="#display" data-slide-to="3"></li>
    </ul>

    <!-- The slideshow -->
    <div class="carousel-inner">
        <?php
        $db = mysqli_connect("localhost", "root", "", "gallery") or die(mysqli_error($db));
        $q = "SELECT artefact_id, imagename FROM artefact ORDER BY artefact_id DESC LIMIT 4";
        $results = mysqli_query ($db, $q) or die(mysqli_error($db));
        $row = mysqli_fetch_array($results);
        print "<div class='item active'>
        <img src='images/{$row['imagename']}'>
        </div>\n";

        while($row=mysqli_fetch_array($results))
            print "<div class='item'>
            <img src='images/{$row['imagename']}'>
            </div>\n" 
        ?>
    </div>

    <!-- Left and right controls -->
    <a class="left carousel-control" href="#display" data-slide="prev">
        <span class="glyphicon glyohicon-chevron-left" aria-hidden="true"></span>
        <span class ="sr-only">Previous</span>
    </a>
    <a class="left carousel-control" href="#display" data-slide="next">
        <span class="glyphicon glyohicon-chevron-right" aria-hidden="true"></span>
        <span class ="sr-only">Next</span>
    </a>

我已经包含了这些：

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">

<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>

<!-- Popper JS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>

<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="css/style.css">

我会留下一个例子来说明我的意思 here.

Answer 1

您的 class 物品名称有误。根据 https://getbootstrap.com/docs/4.5/components/carousel/，class 名称应该是 carousel-item，而不是 item。

改变 <div class='item active'> 至 <div class='carousel-item active'>

和<div class='item'>到<div class='carousel-item'>

轮播图片正在堆叠，如何阻止它们堆叠？

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