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It’s always the stacking context.
22.3.2021
In “What the heck, z-index??,” Josh Comeau makes the analogy of layer groups in design software like Photoshop or Figma to stacking contexts in CSS. If you’ve got an element in a layer group A in Photoshop that …
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Using AbortController as an Alternative for Removing Event Listeners
15.2.2021
The idea of an “abortable” fetch came to life in 2017 when AbortController was released. That gives us a way to bail on an API request initiated by fetch() — even multiple calls — whenever we want.
Here’s a super …
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:focus-visible Support Comes to Firefox
10.2.2021
Look at that! The :focus-visible pseudo-selector is now supported in Firefox, as of version 85 which shipped yesterday. I had to rush over to the MDN Docs just to confirm, and yep, the :focus-visible page has been updated to …
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Mozilla ukončila práce na podpoře PWA pro Firefox. Instalovat webové aplikace se tak nenaučí
3.2.2021
Webové aplikace jsou způsob pro vývojáře, jakým obejít uzavřené ekosystémy a dostat se tam, kde je to jinak obtížné. Podporují je hlavně Chrome a Edge, Firefox ale nyní couvá. Na integraci důležitých prvků již nadále nepracuje.
PWA, tedy Progessive Web Apps jsou takové weby, které umí využít
Open Web Docs
2.2.2021
Robert Nyman:
Open Web Docs was created to ensure the long-term health of web platform documentation on de facto standard resources like MDN Web Docs, independently of any single vendor or organization. Through full-time staff, community management, and
…
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Life with ESM
19.1.2021
ESM, meaning ES Modules, meaning JavaScript Modules. Like, import and friends.
Browsers support it these days. There is plenty of nuance, but as long as you’ve dropped IE, the door is fairly open.
Before ESM, the situation for JavaScript …
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Mozilla VPN se rozšiřuje na Linux a Mac. Většina regionů ale na dostupnost stále čeká
14.1.2021
Mozilla VPN se v posledních dnech rozšířila na Linux a macOS, dvě poslední velké platformy, kde ještě funkční nebyla. Ovšem zatímco se zvyšuje dostupnost na různých zařízeních, pokulhává expanze do dalších regionů. Přestože na podzim firma slibovala, že svou VPN rozšíří do více zemí, i nadále ji
Dynamic, Conditional Imports
13.1.2021
With ES Modules, you can natively import other JavaScript. Like confetti, duh:
import confetti from 'https://cdn.skypack.dev/canvas-confetti';
confetti();
That import statement is just gonna run. There is a pattern to do it conditionally though. It’s like this:
(async ()
…
The post...
Flash’s Web Tech Legacy
11.1.2021
Tiffany B. Brown on how Flash paved the way for some things we might think of as fairly modern web technologies:
Flash wasn’t just good for playing multimedia. It was also good for manipulating it. Using ActionScript, you could pan
…
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Nový rok v novém kabátu. Mozilla připravuje další redesign Firefoxu
5.1.2021
Stěžejní produkt Mozilly – webový prohlížeč Firefox – bude od letoška vypadat zase trochu jinak. Tvůrci před dvěma měsíci rozjeli projekt nazvaný Proton, na jehož konci bude proměna prakticky celého uživatelského rozhraní. Zatím bohužel nemáme k dispozici přesné informace ani screenshoty.
Sören
Representation Matters
15.12.2020
This year I had the pleasure of re-launching The Accessibility Project. I spend a lot of time researching and writing about accessibility and inclusive design, so this felt like the cumulation of a lot of that effort. The site now uses all sorts of cool web features like CSS Grid, @supports,...
MDN on GitHub
14.12.2020
Looks like all the content of MDN is on GitHub now. That’s pretty rad. That’s been the public plan for a while. Chris Mills:
We will be using GitHub’s contribution tools and features, essentially moving MDN from a Wiki model to a pull request (PR) model. This is so much better...
Color Theming with CSS Custom Properties and Tailwind
19.11.2020
Custom properties not only enable us to make our code more efficient, but allow us to work some real magic with CSS too. One area where they have huge potential is theming. At Atomic Smash we use Tailwind CSS, a utility class framework, for writing our styles. In this article, we’ll look at...
Firefox 83
19.11.2020
There’s a small line in the changelog that is is big news for CSS:
We’ve added support for CSS Conic Gradients (bug 1632351) and (bug 1175958).
🎉🎉🎉
Conic gradients are circular, just like their radial counterpart, but place color stops...
Quick LocalStorage Usage in Vue
5.11.2020
localStorage can be an incredibly useful tool in creating experiences for applications, extensions, documentation, and a variety of use cases. I’ve personally used it in each! In cases where you’re storing something small for the user that doesn’t need to be kept permanently...
How to Animate the Details Element Using WAAPI
5.11.2020
Animating accordions in JavaScript has been one of the most asked animations on websites. Fun fact: jQuery’s slideDown() function was already available in the first version in 2011.
In this article, we will see how you can animate the native <details> element using the Web Animations...
How Hacker News Crushed David Walsh Blog
28.10.2020
Earlier this month, David’s heartfelt posting about leaving Mozilla made the front page of Hacker News. Traffic increased by 800% to his already-busy website, which slowed and eventually failed under the pressure. Request Metrics monitors performance and uptime for David’s blog, and our metrics...
[článek] Microsoft Edge pro Linux, údajný hack Trumpova Twitteru a Mozilla ve virtuální realitě
25.10.2020
[10 minut čtení] Sociální sítě jsou zesilovač pro idioty, Facebook míří k antimonopolnímu řízení, masturbace na Zoomu a WeChat stále není zakázán. Co ještě přinesl právě končící #tyden? Na internetu se objevilo více než 100 tisíc falešných nahých ženských fotek. Jsou vytvořeny z reálných fotografií...
39 Shirts – Leaving Mozilla
6.10.2020
In 2001 I had just graduated from a small town high school and headed off to a small town college. I found myself in the quaint computer lab where the substandard computers featured two browsers: Internet Explorer and Mozilla. It was this lab where I fell in love with Mozilla — a browser that...
Web Technologies and Syntax
24.9.2020
JavaScript has a (newish) feature called optional chaining. Say I have code like:
const name = Data.person.name;
If person happens to not exist on Data, I’m going to get a hard, show-stopping error. With optional chaining, I can write:
const name = Data.person?.name;
Now if person...