A change to overflow on replaced elements in CSS

From Chrome 108, the following replaced elements respect the overflow property: img, video and canvas. In earlier versions of Chrome, this property was ignored on these elements.

This means that an image which was earlier clipped to its content box can now draw outside those bounds if specified to do so in a style sheet. The default browser style sheet clips the overflow to the content box with the following rules:

img {
  overflow: clip;
  overflow-clip-margin: content-box;
}

However, it is possible for your stylesheet to override this behavior by setting overflow: visible. The following examples show some cases where you might now see unwanted overflow.

The object-fit property is used to scale the image and fill the box. If the aspect ratio does not match the box, the image will draw outside of the bounds.

img {
  object-fit: cover;
  overflow: visible;
}

The border-radius property makes a square image look like a circle, but because overflow is visble the clipping no longer occurs.

img {
  border-radius: 50% 50%;
  overflow: visible;
}

Setting inherit: all and causing all properties to inherit, including overflow.

img {
  all: inherit;
}

# Solution

If this change means you see unwanted overflow, and overriding the overflow property to visible is not intentional, inspect the CSS applied to the element via DevTools. This should allow you to identify the CSS declaration which is overriding the overflow property to visible and remove it or update it to clip.

img {
    overflow: clip;
}

If updating the CSS is not trivial, another fix is to add the following inline style to the element.

<img style="overflow:clip !important">