HTML and CSS Certification Practice Test 2025 – The All-in-One Guide to Master Your Certification!

Question: 1 / 400

What is the purpose of using background-size: cover; in CSS?

To repeat the background image

To keep the image aspect ratio while covering the entire background

Using background-size: cover; in CSS serves the specific purpose of resizing a background image such that it completely covers the entire area of the element, while maintaining the aspect ratio of the image. This means that the image will scale up or down as needed to ensure that there are no empty spaces in the background, even if that results in parts of the image being cropped off.

This property is particularly valuable when you want a dynamic and responsive design. When the size of the element changes (due to resizing the browser window or responding to different screen sizes), the background image will adjust accordingly to remain fully covering the element, ensuring a visually appealing and cohesive design.

In contrast, other options do not accurately describe this behavior. The repeating of the background is controlled by different properties, stretching an image would distort its aspect ratio, and positioning the image centrally does not inherently mean it will cover the area without leaving gaps.

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To stretch the image across the entire element

To place the image in the center of the background

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