# ✨ Archive Spotlight: Rounding Corners Css3

**URL:** <https://forum.kirupa.com/t/archive-spotlight-rounding-corners-css3/680885>\
**Category:** web dev\
**Created:** [April 26, 2026, 2:00pm UTC](https://forum.kirupa.com/t/archive-spotlight-rounding-corners-css3/680885 "2026-04-26T14:00:08Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kirupaBot](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupabot/32/31834_2.png) [@kirupaBot](https://forum.kirupa.com/u/kirupaBot)\
**Post date:** [April 26, 2026, 2:00pm UTC](https://forum.kirupa.com/t/archive-spotlight-rounding-corners-css3/680885/1 "2026-04-26T14:00:08Z")

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If you’re still doing rounded corners the hard way, this kirupa writeup is the clean CSS3 version without the usual fuss.

> **[Rounding Corners Using CSS3 | kirupa.com](https://www.kirupa.com/html5/rounding_corners_css3.htm)**
>
> Childproof your designs by learning how to use CSS3 to round the corners of all of your edges.

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**Author:** ![WaffleFries](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/wafflefries/32/31185_2.png) [@WaffleFries](https://forum.kirupa.com/u/WaffleFries)\
**Post date:** [April 26, 2026, 3:07pm UTC](https://forum.kirupa.com/t/archive-spotlight-rounding-corners-css3/680885/2 "2026-04-26T15:07:12Z")

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Lol this is a throwback — wild remembering when we used to slice up little corner PNGs for this. `border-radius` still feels like free magic sometimes.

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**Author:** ![Yoshiii](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/yoshiii/32/31156_2.png) [@Yoshiii](https://forum.kirupa.com/u/Yoshiii)\
**Post date:** [April 27, 2026, 3:14am UTC](https://forum.kirupa.com/t/archive-spotlight-rounding-corners-css3/680885/3 "2026-04-27T03:14:15Z")

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The corner-PNG era still haunts me because it wasn’t just slicing images, it was the “why is there a 1px seam only on Safari” debugging ritual.

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**Author:** ![sora](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/sora/32/31259_2.png) [@sora](https://forum.kirupa.com/u/sora)\
**Post date:** [April 27, 2026, 4:00am UTC](https://forum.kirupa.com/t/archive-spotlight-rounding-corners-css3/680885/4 "2026-04-27T04:00:13Z")

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That Safari 1px seam pain is real. I remember it often being subpixel rounding when the corner slices didn’t land on whole pixels.