Druct

The Teletype Text Element Lives On… at Least on This Site

It was this: <tt>

I say "was" because it's deprecated. It may still "work" (like everybody's favorite <marquee> in some browsers), but it could stop working anytime, they say. The whole purpose of it was to display text in a monospace font, like the way Teletype machines used to.

Dave ..

The Mozilla Developer Roadshow Talks: Firefox, WebAssembly, CSS, WebXR and More

The Mozilla Developer Roadshow program launched in 2017 with the goal of bringing expert speakers and web technology updates to local communities through free events and partnerships. Check out the video playlist from our summer tour, with talks on topics like Mixed Reality, WebAssembly, modern CSS, and more. Or register now for an upcoming Roadshow event in Asia.

The post

Weekly Platform News: Impact of Third-Party Code, Passive Mixed Content, Countries with the Slowest Connections

In this week's roundup, Lighthouse sheds light on third-party scripts, insecure resources will get blocked on secure sites, and many country connection speeds are still trying to catch up to others... literally.

Lighthouse, Chrome’s built-in auditing tool, now shows a warning when the impact of third-party code on page load performance is too high. The pre-existing “Third-part..

Recipes for Performance Testing Single Page Applications in WebPageTest

WebPageTest is an online tool and an Open Source project to help developers audit the performance of their websites. As a Web Performance Evangelist at Theodo, I use it every single day. I am constantly amazed at what it offers to the web development community at large and the web performance folks particu..

Images Are Not Static Content

We constantly hear about the importance of keeping websites lean and fast. A fast-loading website makes users more satisfied, and satisfied users spend more time and money on your website. However, website optimization is a complex task, as there is not one silver bullet to fix all of the issues causing poor performance.

We also hear that addressing the performance of images is a low hanging fruit if you want to improve your site’s use..

Blocking Third-Party Hands from the Cookie Jar

Third-party cookies are set on your computer from domains other than the one that you're actually on right now. For example, if I log into css-tricks.com, I'll get a cookie from css-tricks.com that handles my authentication. But css-tricks.com might also load an image from some other site. A common tactic in online advertising is to render a "tracking pixel" image (well named, right?) that is used to track advertising impressions. That request..

Getting Started with GraphQL and React Native

In 2012, Facebook engineer Nick Schrock started work on a small prototype to facilitate moving away from an old, unsupported partner API that powered the current Facebook News Feed. At the time, this was called “SuperGraph”. Fast forward to today and SuperGraph has helped shape the open-source query..

Patterns for Practical CSS Custom Properties Use

I've been playing around with CSS Custom Properties to discover their power since browser support is finally at a place where we can use them in our production code. I’ve been using them in a number different ways and I’d love for you to get as excited about them as I am. They are so useful and powerful!

I find that CSS variables usage tends to fall into categories.

Let’s Not Forget About Container Queries

Container queries are always on the top of the list of requested improvements to CSS. The general sentiment is that if we had container queries, we wouldn't write as many global media queries based on page size. That's because we're actually trying to control a more scoped container, and the only reason we use media queries for that now is because it's the best tool we have in CSS. I absolutely believe that.

There is anot..

A Snippet to See all SVGs in a Sprite

I think of an SVG sprite as this:

<svg display="none">
  <symbol id="icon-one"> ... <symbol>
  <symbol id="icon-two"> ... <symbol>
  <symbol id="icon-three"> ... <symbol>
</svg>

I was long a fan of that approach for icon systems (<use>-ing them as needed), but I favor including the SV..

Clipping, Clipping, and More Clipping!

There are so many things you can do with clipping paths. I've been exploring them for quite some time and have come up with different techniques and use cases for them — and I want to share my findings with you! I hope this will spark new ideas for fun things you can do with the CSS clip-path property. Hopefully, you'll either put them to use on your projects or play around and have fun with them.

Before we dive …

Wufoo Cracks the Code for Forms So You Don’t Have To

There was a lot of buzz about forms last week when Jason Grisby pointed to a missing pattern attribute on Chipotle's order form that could have been used to help-through millions of dollars in orders. Adrian Roselli followed that up with the common mistake of forgetting for and id attributes on form inputs and the potential cost of it.

Forms are hard. And that's without thi..

macOS Catalina: 5 Things Web Developers & Designers Should Know

macOS Catalina is here and available for download, and you've no doubt heard all about the breakup of iTunes and the new consumer-oriented entertainment apps shipping with the system.

But what do developers, designers, and other tech professional..

9 of the Best Animation Libraries for UI Designers

This is the latest update to our guide to helping you choose the right animation library for each task. We're going to run-through 9 free, well-coded animation libraries best-suited to UI design work — covering their strengths and weaknesses, and when to choose each one.

Ta..