Kacper Szarkiewicz

Design Engineer

let's build together

I build dApps. I specialise in Frontend and UX in Web3.

The new Standard for Numeric Inputs.

A dice button animated with CSS 3D Transforms.

Why CSS dashed borders fall short and how to build precise, fadeable dotted lines with repeating-linear-gradient.

Something native UIs get right that most web tooltips don't.

Interactive CSS-only glow effect cards that track the pointer position using custom properties.

An iMessage composer built with group-focus-within and group-has - tray collapse, icon crossfade, and conditional pickers, all CSS-only.

CSS z-index explained: why z-index: 9999 fails, how stacking contexts trap elements, and how the top layer solves it.

Stay updated with my latest articles and projects. No spam, no nonsense.

Articles I find interesting

You can see more of my work on X, more of my code on GitHub, and my videos on YouTube.