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Dec. 24, 2025, 3:50 p.m.

Thirty short, practical web design lessons and video on the web

Koos Looijesteijn's design newsletter Koos Looijesteijn's design newsletter

Sometimes I feel silly for keeping countless unfinished blog posts in my notes folder. But as I was reviewing the year and found I didn't post very much, it came in handy. I found a draft that was basically ready for publishing. I don't know why I didn't like it before, but it contains some web design insights I almost forgot about.

Happy holidays!


Koos


From my blog

Responsive video is (almost) easy now | Koos Looijesteijn

How to serve high-quality, vertical and horizontal video variants and break free from platforms like YouTube

After implementing the above, I found that due to how video compression works, matching the background color of a video with a website isn’t as easy as with images. Here’s how I worked around that.

And here’s the aforementioned article How I do web design - Thirty short, practical lessons.

All blog posts

Bookmarks

Some practical examples of view transitions to elevate your UI - Piccalilli

Declan Chidlow here with some really practical uses of view transitions, along with some of the stuff that will trip you up, with guidance to help you navigate that.

191 Social Proof Examples

Browse social proof examples grounded in psychology, with real-life applications in business and marketing to build trust on your website and in advertising.

Aurel's Grand Theater

I am a creative front-end developer based in Seoul, previously in Toronto, with over a decade of meaningful experience across 3 continents.

And finally, two CSS links: Charts CSS for creating charts for the web without JavaScript and a visual easing generator tool for your transitions.

More bookmarks

You just read issue #26 of Koos Looijesteijn's design newsletter. You can also browse the full archives of this newsletter.

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