我的自举传送带的固定高度为32rem，宽度为100％。当图像较大时，它将显示图像的中间部分。这在Chrome / edge / FF中效果很好。但是，在IE中，图像被垂直压缩以显示垂直空间32rem中的完整图像高度。有关如何解决此问题的任何想法？
JSBin：https://jsbin.com/cuhinecare/1/edit?html,output
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
<style type="text/css">
.row {
background: #f8f9fa;
margin-top: 20px;
}
.col {
border: solid 1px #6c757d;
padding: 10px;
}
.carousel-inner .carousel-item {
max-height: 400px;
}
.carousel-inner .carousel-item img {
max-width: none;
object-fit: cover;
overflow:hidden;
}
.carousel-caption {
background-color:rgba(0,0,0,0.5);
}
main {min-height:460px;}
/* CUSTOMIZE THE CAROUSEL
-------------------------------------------------- */
/* Carousel base class */
.carousel {
margin-bottom: 4rem;
}
/* Since positioning the image, we need to help out the caption */
.carousel-caption {
bottom: 3rem;
z-index: 10;
}
/* Declare heights because of positioning of img element */
.carousel-item {
height: 32rem;
}
.carousel-item > img {
position: absolute;
top: 0;
left: 0;
min-width: 100%;
height: 32rem;
}
</style>
</head>
<body>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
<!--
Bootstrap docs: https://getbootstrap.com/docs
-->
<main class="container">
<div id="myCarousel" class="carousel slide mb-5" data-ride="carousel">
<ol class="carousel-indicators"><li data-target="#myCarousel" data-slide-to="0" class="active"></li><li data-target="#myCarousel" data-slide-to="1" ></li><li data-target="#myCarousel" data-slide-to="2" ></li><li data-target="#myCarousel" data-slide-to="3" ></li><li data-target="#myCarousel" data-slide-to="4" ></li>
</ol>
<div class="carousel-inner">
<div class="carousel-item active">
<img src="https://armi.usgs.gov/uploads/20200121_111904.jpg" class="d-block w-100" alt="California Red-legged Frog eggmass arrives at a site in the Santa Ana Mountains." />
<div class="container">
<div class="carousel-caption">
<h2>Story heading</h2>
<div>By: photographer</div>
<a class="btn btn-primary" href="story/story.php?contentid=202164" role="button" title="Click here to read the full story.">Read Story</a>
</div>
</div>
</div>
</div>
<a class="carousel-control-prev" href="#myCarousel" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#myCarousel" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</main>
</body>
</html>
由于object-fit: cover为not supported by IE，所以图片被压缩。您可以使用background-size: cover作为解决方法。
您可以在CSS中添加此部分来处理IE 11的情况：
background-size: cover