How can we manage the aspect ratio of lazy-loaded images with varying dimensions in order to prevent any disruption in the content layout?

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One solution is to set a fixed aspect ratio for the containing element (such as a div) and then use CSS to set the background-image of the element to the lazy-loaded image. This ensures that the container element maintains its aspect ratio, even as the actual image is loaded and its dimensions change.

For example, if you want a container element with a 16:9 aspect ratio, you can set the following CSS:

.container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  background-position: center center;
  background-size: cover;
}

.container > img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

Then, you can lazily load the image as follows:

<div class="container">
   <img data-src="lazy-image.jpg" class="lazyload" />
</div>

The lazyload class can be used with a third-party JavaScript library (such as lazysizes or Intersection Observer) to lazily load the image while the data-src attribute holds the URL of the lazy-loaded image.

With this approach, once the image has loaded, it will be resized to fit the container while maintaining its aspect ratio without disrupting the content layout.