30秒学会 CSS 片段 – Fit image in container

Changes the fit and position of an image within its container while preserving its aspect ratio. Previously only possible using a background image and the background-size property.

• object-fit: contain fits the entire image within the container while preserving its aspect ratio.
• object-fit: cover fills the container with the image while preserving its aspect ratio.
• object-position: [x] [y] positions the image within the container.

预览

在 CodePen 中编辑

HTML

<img class="image image-contain" src="https://picsum.photos/600/200" />
<img class="image image-cover" src="https://picsum.photos/600/200" />

CSS

.image {
  background: #34495e;
  border: 1px solid #34495e;
  width: 200px;
  height: 200px;
}

.image-contain {
  object-fit: contain;
  object-position: center;
}

.image-cover {
  object-fit: cover;
  object-position: right top;
}

翻译自：https://www.30secondsofcode.org/css/s/fit-image-in-container