17 lines
1.3 KiB
Markdown
17 lines
1.3 KiB
Markdown
---
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title: "Tip: The perfect duration for CSS transitions"
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type: tip
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tags: css,interactivity,visual,animation
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authors: chalarangelo
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cover: blog_images/perfect-timing.jpg
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excerpt: Learn how to make your CSS transitions feel perfect when users interact with elements on the page with this simple tip.
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---
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We have all experienced a website interaction that feels sluggish or otherwise off on account of poor transition or animation duration and timing. However, there is a very simple "golden rule" to help you avoid this poor user experience, called **Doherty Threshold:**
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> Productivity soars when a computer and its users interact at a pace (<400ms) that ensures that neither has to wait on the other.
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The **magic number** of `0.4s` sounds like a very reasonable threshold, but take a look at any of your favorite websites and you'll notice that most `transition-duration` or `animation-duration` values are closer to `0.3s`. This might have something to do with our more recent expectation of what a fast interaction should feel like - after all the relevant research paper was published in 1982.
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**Image credit:** [Josh Calabrese](https://unsplash.com/@joshcala?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText) on [Unsplash](https://unsplash.com?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText)
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