Shoutout to Stephanie Eckles’ 12 Days of Web advent blogging this year. I found each article fresh and with good information, a real standout to me. Just one day left but of course you can read them anytime.
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The CSS contain property
CSS containment is used for optimization and opening styling possibilities by isolating elements from the rest of the page. Different contain values (size, paint, layout, etc.) provide various benefits and tradeoffs.
Letting iOS “Text Size” Setting Affect Font Size on the Web
On iOS, there is a setting for Text Size. I’ll do a video here for the current version of iOS (17.5.1) to be clear: As far as I ever knew, that controlled the text size on the OS itself and native apps. It didn’t effect websites. I think that’s largely true, but I just learned […]
Fine-Grained Reactivity in Svelte 5
Svelte is already quite lightweight and fast, but Svelte 5 still overs big improvements in fine-grained reactivity, meaning re-rendering as absolutely little as possible.
Relative Color Syntax — Basic Use Cases
Support for the relative color syntax in CSS is across the board now (go interop!), so here we look at some basic (and still very useful) use cases, like applying alpha to a color you have on hand.
Exploring the Possibilities of Native JavaScript Decorators
Native support for decorators is inevitable! It simplifies augmenting class methods, which can help with things like logging, memoization, debouncing, and dependency injection.
Snippets in Svelte 5
Out with slots, in with snippets.
The Beat
12 Days of Web
1 dataset. 100 visualizations.
Imagine this simple data set:
| Norway | Denmark | Sweden | |
|---|---|---|---|
| 2004 | 5 | 4 | 13 |
| 2002 | 8 | 10 | 15 |
Pretty simple, but there is interesting stuff going on. Someone might be trying to reference an individual bit of information, but they also might be looking to compare data, or look at the rate of change of the data over time, all of which are things this data has.
The agency Ferdio created 100 visualizations of that data. Why so many? They can be used to emphasize different parts of the story being told with the data (and some are just… bad.)
Calibre Website Speed Test
Calibre, the website performance testing app, launched a one-off Website Speed Test page anyone can use for free. This is nice it requires no special knowledge to use (anyone can type in a URL), the test can be run from significant geolocations (that probably aren’t where you live), and the test result is saved and can be shared.
webpagetest.org is the classic in this space. Both are trying to sell you more advanced services. Just a matter of which you find more useful.
Anchoreum
A “game” where you enter the right CSS to move to the next level, teaching you CSS anchor positioning along the way.
In the vein of Flexbox Froggy, which I know clicked with a ton of people. Made by Thomas Park, who’s company Codepip actually makes a ton of these experiences.
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