Why Does Object-Fit: Contain Preserve Original Image Width in Flexbox Layouts?

object-fit: contain; Preserving Original Image Width in Layouts

Maintaining responsive images within flexbox containers often involves utilizing object-fit: contain. While resizing images addresses the issue, the underlying layout may preserve the original image width, introducing horizontal scrolling. This behavior is an expected result of object-fit: contain.

To understand this behavior, consider a simpler example:

<code class="css">.box {
  width: 300px;
  height: 300px;
  border: 1px solid;
}
img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}</code>

<code class="html"><div class="box">
  <img src="image.jpg">
</div></code>

In this scenario, if the image's dimensions are larger than the box, the image will scale down to fit entirely within the box. However, the image's aspect ratio will be maintained, potentially preserving its original width.

Applying this principle to your flexbox layout, the images will indeed resize to fit within their containers. However, the containers themselves will stretch to accommodate the original image width. To prevent this, you can consider setting a maximum width for your containers or exploring alternative approaches to maintain image responsiveness.

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