Learn how to use lazy loading without hurting web performance, a small interactive cover component, how you can have fun with leaked Claude Code’s source code, and more.
Jakub Andrzejewski explains when lazy loading improves performance, when it backfires, and how it impacts Core Web Vitals like LCP, CLS, and INP — with practical patterns and real-world pitfalls.
Kitty Giraudel gives a technical walkthrough on building a small interactive cover component with some nifty CSS tricks.
You spent three hours getting the CSS exactly right. Crazy Egg shows you if users actually click the button you centered.
From heatmaps, scroll maps, and click maps, you’ll get a visual breakdown of real user behavior, session recordings, A/B testing, and much more.
JointJS is a JavaScript diagramming library for interactive UIs. I’ve been creating a lot of content around it, especially related to AI Coding Agents, on the blog and YouTube channel.
So if you’re interested in AI-assisted development workflows, Claude Code, or creating interactive visual apps, check out some of the latest content I created:
Just as well, I’ve been much more active on LinkedIn lately, so let’s connect on Linkedin too.
Claude Code's source code has just been leaked via a map file in their npm registry. This might be very bad for them, but for us, it's a fantastic chance to have fun and potentially build something really cool.
Find out how to detect at-rule support in CSS, how the pointer-box-offset property works, what the different and creative ways are to select the HTML element, how it’s possible to recreate the x86 CPU architecture in CSS, and more.
David A. Herron shows how to build UI patterns for modal windows and prompts using the <dialog> and popover web features.
Yuan Chuan demonstrates how to create a multi-stroke text effect.
Abhishek Pratap Singh explains how the column-height and column-wrap CSS multi-column layout properties enable you to wrap the additional content into a new row.
Harry Roberts shares a quick but important reminder that font-family declarations don’t inherit fallback stacks the way many developers assume.
Manuel Matuzovic explains why using box-shadow for styling focus outlines can be problematic.
The Layout Maestro is a written, interactive CSS course that teaches you how to think, build, and debug layouts, not just memorize properties. It covers flexbox, grid, :has(), and container queries.
Use the coupon code CSSWEEKLY for $50 off.
A collection of utility functions to more easily work with View Transitions.
CalendarJS is a modular suite of JavaScript components that makes time-based UI painless.
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Happy coding,
Zoran Jambor
A short, friendly roundup of the most useful tools, ideas, and real-world examples—curated specifically for developers like you.
