Firefox is taking a one-piece-at-a-time strategy to replace the Gecko rendering engine with a modern one coded in Rust.
Mozilla’s been working on a brand new, top-secret engine. Except it’s totally not top-secret. Never was. At another company it would have been a top-secret project. At Mozilla, it’s all done out in the open.
The project is called Servo. It was started as an experiment. It’s coded in a new programming language called Rust. (Gecko is written in C++.) And it’s open source. You can totally help us make it.
Read more from the source: jensimmons.com
Every country flag using only a single element, CSS, and fonts.
Flags of the world in just one div
View all at CSS Flags
Icons using a single element and CSS only
All 512 icons here.
As system fonts get nicer you might consider treating them like first-class citizens on your web site
Ire Aderinokun writes:
A few months ago, I wrote about how you can use system fonts in the browser using the built-in keywords that work with the font shorthand property (see Using System Fonts in the Browser).
Relatively recently, some websites and web applications have been adopting a new method for using system fonts in the browser. With this method, the fonts used by different systems are explicitly called themselves in the font-family property.
Read more from the source: bitsofcode
How to use @supports in CSS to specify CSS that targets browsers capable of implementing a certain feature
So when do you want to use @supports? A Feature Query is a tool for bundling together CSS declarations so that they’ll run as a group under certain conditions. Use a Feature Query when you want to apply a mix of old and new CSS, but only when the new CSS is supported.
Let’s look at an example using the Initial Letter property. This new property initial-letter tells the browser to make the element in question bigger — like for a drop cap. Here, the first letter of the first word in a paragraph is being told to be the size of four lines of text. Fabulous. Oh, but I would also like to make that letter bold, and put a bit of margin on its right side, and hey, let’s make it a nice orange color. Cool.
We don’t want to change the color of the letter, or add a margin, or make it bold unless it’s also going to be made bigger by the Initial Letter property. We need a way to test and see whether or not the browser understands initial-letter, and only apply the change to color, weight, and margin if it does. Enter the Feature Query.
Read more from the source: hacks.mozilla.org
The better you understand the newest HTML and CSS, you’ll find that much of the code we write can be eliminated altogether
But it turns out the only surefire way to make performant Web Stuff is also to just write less. Minify? Okay. Compress? Well, yeah. Cache? Sounds technical. Flat out refuse to code something or include someone else’s code in the first place? Now you’re talking.
Read more from heydonworks.com