HTML & CSS · Senior · Question 64 of 75

What layout shift does `scrollbar-gutter: stable` prevent?

✓Correct answer: Content jumping sideways when a page or container gains a classic scrollbar
2Images shifting while loading
3Fonts changing width on swap

Explanation

It reserves space for the scrollbar even when content doesn't overflow. It matters on systems with non-overlay scrollbars (most Windows setups).

Further reading

MDN: scrollbar-gutter ↗

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