用ChatGPT写了一个关于以图片中心点为准自动缩放裁切居中显示的网页代码

闲来无事,突然想起用ChatGPT写了一个关于以图片中心点为准自动缩放裁切居中显示的网页代码

我问它,我说要在网页上实现一个图片展示的效果,要求是我设定一个显示大小,比如宽300px,高150px,如果图片超过这个尺寸,以图片中心点为准自动缩放裁切居中显示,然后它直接给出了代码,并给出具体步骤:

1.在 HTML 中添加一个 div 元素,作为图片的容器:

<div class="image-container">
<img src="path/to/image.jpg">
</div>

2.在 CSS 中设置该 div 元素的宽度和高度,并设置 img 标签的宽度和高度为 100%:

.image-container {
  width: 300px;
  height: 150px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

其中,overflow: hidden 属性用于隐藏超出容器的部分,display: flex 和 justify-content: centeralign-items: center 属性用于实现水平和垂直居中。

object-fit 属性用于设置图片的宽高比例,cover 值表示自动缩放裁切,保持图片比例不变,以完全覆盖容器;object-position 属性用于设置图片的位置,center 值表示居中显示。

这样,如果图片超过了容器的尺寸,就会自动缩放裁切并居中显示。如果图片尺寸小于容器尺寸,则会自动按比例放大填充整个容器。

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