Christian Heilmann

Using position: sticky to create persistent headers in long texts

February 9th, 2021

The sticky value of CSS positioning is an underused gem. It treats an element as it if is positioned relative until it reaches a certain position on the screen and then turns it into a fixed position. I’ve used this on the developer advocacy handbook to keep headers in sight above the current section until […]

Sharing data between CSS and JavaScript using custom properties

February 8th, 2021

One of the big battles we see in the web development world is still CSS vs. JavaScript. Both have their merits, their own syntax and ideas and it can be tough to get your head around them. This is why I love that we have ways to make the two communicate and use each for […]

HTML and CSS still isn’t about painting with code

January 21st, 2021

The other day I had a friend come to my place with the request to “learn HTML and how web sites work”. We spent a few hours playing with the topic and she got excited and quite far into it. The whole thing reminded me about a real problem when it comes to teaching people […]

Newsletter

Check out the Dev Digest Newsletter I write every week for WeAreDevelopers.

Don't stop thinking, AI Slop vs. OSS Security, rolling your own S3 Despite AI you still need to think, Bitter lessons from building AI products,  AI Slop vs. OSS security and pointer pointer…
200: Building for the web, what's left after rm -rf & 🌊🐴 vs AI What remains after you do a rm -rf? Why do LLMs know about a seahorse emoji? What image formats should you use? How private is your car?
Word is Doomed, Flawed LLM benchmarks, hard sorting and CSS mistakes Spot LLM benchmark flaws, learn why sorting is hard, how to run Doom in Word and how to say "no" like a manager.
30 years of JS, Browser AI, how attackers use GenAI, whistling code Learn how to use AI in your browser and not on the cloud, why AI makes different mistakes than humans and go and whistle up some code!
197: Dunning-Kruger steroids, state of cloud security, puppies>beer

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