Which properties ensure an image covers its container without distortion?

Which properties ensure an image covers its container without distortion?

• A. object-fit: cover; object-position: center; width: 100%; height: 100%
• B. display: inline
• C. margin: auto
• D. border: none

Answer: (A)

The effect comes from keeping the image’s aspect ratio while making it fill the whole container. Using object-fit: cover makes the image scale so every part of the container is covered, and it preserves the image’s proportions so there’s no distortion. Because the container and image may have different aspect ratios, some of the image may be cropped to achieve full coverage, not stretched. Adding object-position: center ensures the crop focuses on the center of the image, which is usually the most visually important area. Setting width and height to 100% ties the image to the container’s size, so it truly fills the available space. Other properties like display, margin, or border don’t control how the image scales to cover the container, so they don’t guarantee this behavior.

The effect comes from keeping the image’s aspect ratio while making it fill the whole container. Using object-fit: cover makes the image scale so every part of the container is covered, and it preserves the image’s proportions so there’s no distortion. Because the container and image may have different aspect ratios, some of the image may be cropped to achieve full coverage, not stretched. Adding object-position: center ensures the crop focuses on the center of the image, which is usually the most visually important area. Setting width and height to 100% ties the image to the container’s size, so it truly fills the available space.

Other properties like display, margin, or border don’t control how the image scales to cover the container, so they don’t guarantee this behavior.