如何正确制作自举旋转木马秤？

Question

我正在使用自举旋转木马并在移动设备和小屏幕上注意到，图像看起来真的很“瘦”。我知道这是响应的一部分，但我已经在一些网站上看到了旋转木马保持原始宽高比并只是缩放到较小的旋转木马。

如何使用我的代码执行此操作？

https://jsfiddle.net/nv7rsgpg/9/share

似乎当我将高度：100vh更改为auto时，它可以正常工作，但每次单击箭头按钮时，高度当然会根据它们的大小不断变化。

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$("#menu-close").click(function(e) {
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.carousel-inner > .item > img,
.carousel-inner > .item > a > img {
    width: 100%;
    margin: auto;
    height: 100vh;
  }

.vcenter {
    position: absolute;
    height:100px;
    width:100%;
    top:50%;
    bottom:50%;
    margin-top: -50px; 
    margin-bottom: -50px;
}
.v-center {
    position: absolute;
    height:100px;
    width:40%;
    top:50%;
    bottom:50%;
    margin-top: -50px; 
    margin-bottom: -50px;
    left:15%;
}    

Answer 1

您可以将.img-responsive类添加到图像中，然后让bootstrap相应地缩放它们。

因此，您的图片代码将如下所示：

<img class="img-responsive" src="http://lorempixel.com/460/345/business" />

您可以为所有图片执行此操作。

自动调整响应式图像以适应屏幕大小。

Answer 2

当您应用height: 100vh;时，您将对所有图像应用一定的高度。所以旋转木马的高度保持不变。但是，当您应用height: auto;时，轮播使用图像的原始高度。

我注意到的另一件事是，您正在将width: 100%;应用于每个轮播图像。如果图像的尺寸较小，则会降低其质量。

更好的方法是让他自动并使用正确尺寸的图像。