--- title: CSS easing functions: what cubic-bezier actually does description: A deep dive into how CSS easing functions work under the hood. Explains the four control points of cubic-bezier(), maps named keywords (ease, ease-in,... canonical: https://daily.dev/posts/css-easing-functions-what-cubic-bezier-actually-does-2uoqsmrtl twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: CSS easing functions: what cubic-bezier actually does | daily.dev og:description: A deep dive into how CSS easing functions work under the hood. Explains the four control points of cubic-bezier(), maps named keywords (ease, ease-in,... og:url: https://daily.dev/posts/css-easing-functions-what-cubic-bezier-actually-does-2uoqsmrtl og:image: https://api.daily.dev/og/posts/2uoqSmrtl.png og:image:alt: CSS easing functions: what cubic-bezier actually does og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # CSS easing functions: what cubic-bezier actually does **[Flavio Copes](https://daily.dev/sources/flaviocopes)** · 5 min read · 12 upvotes · 1 comments ## Summary A deep dive into how CSS easing functions work under the hood. Explains the four control points of cubic-bezier(), maps named keywords (ease, ease-in, ease-out, ease-in-out) to their cubic-bezier equivalents, and covers overshoot effects using y values outside the 0–1 range. Also introduces the newer linear() function for complex bounce/spring animations and steps() for sprite-sheet or typewriter effects. Includes practical advice on which easing to use for entering, leaving, and repositioning UI elements, plus a note that easing applies per keyframe segment, not across the whole animation. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@agustinbarrientos** · 0 upvotes > Very good explanation, thanks! ## Similar posts on daily.dev - [Ease In, Ease Out, and Everything Between](https://daily.dev/posts/ease-in-ease-out-and-everything-between-gk1jf4ks3) · Creative Design Technologist · 6 upvotes · 3 comments - [Level up CSS transitions with cubic-bezier](https://daily.dev/posts/level-up-css-transitions-with-cubic-bezier-gzpgsdnvg) · RUBYLAND · 5 upvotes · 0 comments --- Tags: [#css](https://daily.dev/tags/css) [View this post on daily.dev](https://daily.dev/posts/css-easing-functions-what-cubic-bezier-actually-does-2uoqsmrtl) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"CSS easing functions: what cubic-bezier actually does","url":"https://daily.dev/posts/css-easing-functions-what-cubic-bezier-actually-does-2uoqsmrtl","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/css-easing-functions-what-cubic-bezier-actually-does-2uoqsmrtl"},"datePublished":"2026-08-02T07:44:57.131Z","dateModified":"2026-08-02T07:45:12.950Z","description":"A deep dive into how CSS easing functions work under the hood. 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