Background image in CSS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What CSS property is used to set a background image on an element?

The background-image property is used to set a background image on an element.

beginner

How do you make a background image cover the entire element without repeating?

Use background-size: cover; to make the image cover the whole element and background-repeat: no-repeat; to prevent repeating.

beginner

What does background-position: center; do?

It centers the background image horizontally and vertically inside the element.

intermediate

How can you make a background image stay fixed when scrolling the page?

Use background-attachment: fixed; to keep the background image fixed in place while the content scrolls.

intermediate

Why should you use semantic HTML elements with background images?

Semantic elements like <section> or <article> help screen readers and improve accessibility, even if a background image is decorative.

Which CSS property sets the image used as a background?

A img-background

B image-src

C background-image

D background-src

The correct property to set a background image is background-image.

How do you prevent a background image from repeating?

A background-position: center;

B background-repeat: no-repeat;

C background-size: contain;

D background-repeat: repeat-x;

Use background-repeat: no-repeat; to stop the image from repeating.

What does background-size: cover; do?

A Makes the image smaller than the element

B Repeats the image to fill the element

C Centers the image without scaling

D Scales the image to cover the entire element, cropping if needed

cover scales the image to fill the element fully, cropping parts if necessary.

Which property keeps the background image fixed when scrolling?

A background-attachment: fixed;

B background-position: fixed;

C background-repeat: fixed;

D background-size: fixed;

background-attachment: fixed; keeps the background image in place during scrolling.

Why is it important to use semantic HTML with background images?

A It improves accessibility and helps screen readers understand content

B It changes the background image automatically

C It makes the image load faster

D It disables the background image on mobile

Semantic HTML helps assistive technologies understand the page structure, improving accessibility.

Explain how to add a background image to a webpage and make sure it covers the entire area without repeating.

Think about how to make the image fill the space nicely and not repeat.

Describe how to keep a background image fixed in place while the user scrolls the page.

This property controls if the background moves with the page or stays still.