Tags: html

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Saturday, February 23rd, 2019

github/details-menu-element

Now this is how you design a web component! A great example of progressive enhancement by Mu-An Chiou that’s used all over Github: a details element that gets turbo-charged into a details-menu.

There’s also a slidedeck explaining the whole thing.

Sunday, February 17th, 2019

Timelines of the web

Recreating the original WorldWideWeb browser was an exercise in digital archeology. With a working NeXT machine in the room, Kimberly was able to examine the source code for the first every browser and discover a treasure trove within. Like this gem in HTUtils.h:

#define TCP_PORT 80 /* Allocated to http by Jon Postel/ISI 24-Jan-92 */

Sure enough, by June of 1992 port 80 was documented as being officially assigned to the World Wide Web (Gopher got port 70). Jean-François Groff—who worked on the World Wide Web project with Tim Berners-Lee—told us that this was a moment they were very pleased about. It felt like this project of theirs was going places.

Jean-François also told us that the WorldWideWeb browser/editor was kind of like an advanced prototype. The idea was to get something up and running as quickly as possible. Well, the NeXT operating system had a very robust Text Object, so the path of least resistance for Tim Berners-Lee was to take the existing word-processing software and build a hypertext component on top of it. Likewise, instead of creating a brand new format, he used the existing SGML format and added one new piece: linking with A tags.

So the WorldWideWeb application was kind of like a word processor and document viewer mashed up with hypertext. Ted Nelson complains to this day that the original sin of the web was that it borrowed this page-based metaphor. But Nelson’s Project Xanadu, originally proposed in 1974 wouldn’t become a working reality until 2014—a gap of forty years. Whereas Tim Berners-Lee proposed his system in March 1989 and had working code within a year. There’s something to be said for being pragmatic and working with what you’ve got.

The web was also a mashup of ideas. Hypertext existed long before the web—Ted Nelson coined the term in 1963. There were conferences and academic discussions devoted to hypertext and hypermedia. But almost all the existing hypertext systems—including Tim Berners-Lee’s own ENQUIRE system from the early 80s—were confined to a local machine. Meanwhile networked computers were changing everything. First there was the ARPANET, then the internet. Tim Berners-Lee’s ambitious plan was to mash up hypertext with networks.

Going into our recreation of WorldWideWeb at CERN, I knew I wanted to convey this historical context somehow.

The World Wide Web officially celebrates its 30th birthday in March of this year. It’s kind of an arbitrary date: it’s the anniversary of the publication of Information Management: A Proposal. Perhaps a more accurate date would be the day the first website—and first web server—went online. But still. Let’s roll with this date of March 12, 1989. I thought it would be interesting not only to look at what’s happened between 1989 and 2019, but also to look at what happened between 1959 and 1989.

So now I’ve got two time cones that converge in the middle: 1959 – 1989 and 1989 – 2019. For the first time period, I made categories of influences: formats, hypertext, networks, and computing. For the second time period, I catalogued notable results: browsers, servers, and the evolution of HTML.

I did a little bit of sketching and quickly realised that these converging timelines could be represented somewhat like particle collisions. Once I had that idea in my head, I knew how I would be spending my time during the hack week.

Rather than jumping straight into the collider visualisation, I took some time to make a solid foundation to build on. I wanted to be sure that the timeline itself would be understable even if it were, say, viewed in the first ever web browser.

Progressive enhancement. Marking up (and styling) an interactive timeline that looks good in a modern browser and still works in the first ever web browser.

I marked up each timeline as an ordered list of h-events:

<li class="h-event y1968">
  <a href="https://en.wikipedia.org/wiki/NLS_%28computer_system%29" class="u-url">
    <time class="dt-start" datetime="1968-12-09">1968</time>
    <abbr class="p-name" title="oN-Line System">NLS</abbr>
  </a>
</li>

With the markup in place, I could concentrate on making it look halfway decent. For small screens, the layout is very basic—just a series of lists. When the screen gets wide enough, I lay those lists out horzontally one on top of the other. In this view, you can more easily see when events coincide. For example, ENQUIRE, Usenet, and Smalltalk all happen in 1980. But the real beauty comes when the screen is wide enough to display everthing at once. You can see how an explosion of activity in the early 90s. In 1994 alone, we get the release of Netscape Navigator, the creation of HTTPS, and the launch of Amazon.com.

The whole thing is powered by CSS transforms and positioning. Each year on a timeline has its own class that gets moved to the correct chronological point using calc(). I wanted to use translateX() but I couldn’t get the maths to work for that, so I had use plain ol’ left and right:

.y1968 {
  left: calc((1968 - 1959) * (100%/30) - 5em);
}

For events before 1989, it’s the distance of the event from 1959. For events after 1989, it’s the distance of the event from 2019:

.y2014 {
  right: calc((2019 - 2014) * (100%/30) - 5em);
}

(Each h-event has a width of 5em so that’s where the extra bit at the end comes from.)

I had to do some tweaking for legibility: bunches of events happening around the same time period needed to be separated out so that they didn’t overlap too much.

As a finishing touch, I added a few little transitions when the page loaded so that the timeline fans out from its centre point.

Et voilà!

Progressive enhancement. Marking up (and styling) an interactive timeline that looks good in a modern browser and still works in the first ever web browser.

I fiddled with the content a bit after peppering Robert Cailliau with questions over lunch. And I got some very valuable feedback from Jean-François. Some examples he provided:

1971: Unix man pages, one of the first instances of writing documents with a markup language that is interpreted live by a parser before being presented to the user.

1980: Usenet News, because it was THE everyday discussion medium by the time we created the web technology, and the Web first embraced news as a built-in information resource, then various platforms built on the web rendered it obsolete.

1982: Literary Machines, Ted Nelson’s book which was on our desk at all times

I really, really enjoyed building this “collider” timeline. It was a chance for me to smash together my excitement for web history with my enjoyment of using the raw materials of the web; HTML and CSS in this case.

The timeline pales in comparison to the achievement of the rest of the team in recreating the WorldWideWeb application but I was just glad to be able to contribute a little something to the project.

Hello WorldWideWeb.

Monday, February 11th, 2019

A Simpler Web: I Concur

Tales of over-engineering, as experienced by Bridget. This resonates with me, and I think she’s right when she says that these things go in cycles. The pendulum always ends up swinging the other way eventually.

Weeknotes #5 — Paul Robert Lloyd

A nice counterpoint to the last time I linked to Paul’s weeknotes:

However, there’s another portion of the industry, primarily but not exclusively within the public sector, where traditional development approaches (progressive enhancement, server-side rendering) remain prevalent, or less likely to be dismissed, at least. Because accessibility isn’t optional when your audience is everyone, these organisations tend to attract those with a pragmatic outlook who like to work more diligently and deliberately.

Thursday, February 7th, 2019

Transcript of Tim Berners-Lee’s talk to the LCS 35th Anniversary celebrations, Cambridge Massachusetts, 1999/April/14

Twenty years ago—when the web was just a decade old—Tim Berners-Lee gave this talk, looking backwards and forwards.

For me the fundamental Web is the Web of people. It’s not the Web of machines talking to each other; it’s not the network of machines talking to each other. It’s not the Web of documents. Remember when machines talked to each other over some protocol, two machines are talking on behalf of two people.

Tuesday, February 5th, 2019

Revisiting the abbr element

Ire takes a deep dive into implementing an accessible tool tip.

Sunday, February 3rd, 2019

Weeknotes #4 — Paul Robert Lloyd

So far I’ve been drawn towards developer-orientated roles; working with HTML, CSS and JavaScript (in that order) to implement designs and ensure products are accessible and performant. However, it seems such work no longer exists. People talk about full-stack development, but nearly every job I’ve seen containing the words ‘front-end’ has React as a requirement. The gatekeeping is real.

Frustrating on a personal level, but also infuriating when you consider how such gatekeeping is limiting welcome attempts to diversify our industry.

Friday, February 1st, 2019

How do you figure? | CSS-Tricks

A good reminder from Chris—prompted by Scott O’Hara’s article—that the figcaption element and the alt attribute do different things. If you use an empty alt attribute on an img inside a figure, then your figcaption element is captioning nothing …and no, using the same text for both is not the solution.

Thursday, January 31st, 2019

Openness and Longevity

A really terrific piece from Garrett on the nature of the web:

Markup written almost 30 years ago runs exactly the same today as it did then without a single modification. At the same time, the platform has expanded to accommodate countless enhancements. And you don’t need a degree in computer science to understand or use the vast majority of it. Moreover, a well-constructed web page today would still be accessible on any browser ever made. Much of the newer functionality wouldn’t be supported, but the content would be accessible.

I share his concerns about the maintainability overhead introduced by new tools and frameworks:

I’d argue that for every hour these new technologies have saved me, they’ve cost me another in troubleshooting or upgrading the tool due to a web of invisible dependencies.

HTML, CSS and our vanishing industry entry points

This!

When we talk about HTML and CSS these discussions impact the entry point into this profession. Whether front or backend, many of us without a computer science background are here because of the ease of starting to write HTML and CSS. The magic of seeing our code do stuff on a real live webpage! We have already lost many of the entry points that we had. We don’t have the forums of parents teaching each other HTML and CSS, in order to make a family album. Those people now use Facebook, or perhaps run a blog on wordpress.com or SquareSpace with a standard template. We don’t have people customising their MySpace profile, or learning HTML via Neopets. We don’t have the people, usually women, entering the industry because they needed to learn HTML during that period when an organisation’s website was deemed part of the duties of the administrator.

I agree with every single word Rachel has written.

I care not a whit what tools or frameworks, or languages you use to build something on the web. But I really care deeply when particular tools, frameworks, or languages become mandatory for even getting a foot in the door.

This is for everyone.

I might be the “old guard” but if you think I’m incapable of learning React, or another framework, and am defending my way of working because of this, please get over yourself. However, 22 year old me would have looked at those things and run away. If we make it so that you have to understand programming to even start, then we take something open and enabling, and place it back in the hands of those who are already privileged. I have plenty of fight left in me to stand up against that.

Sunday, January 27th, 2019

Designing for the web ought to mean making HTML and CSS - Signal v. Noise

The towering demands inherent in certain ways of working with JavaScript are rightfully scaring some designers off from implementing their ideas at all. That’s a travesty.

Hear, hear! And before you dismiss this viewpoint as some lawn-off-getting fist-waving from “the old guard”, bear this in mind:

Basecamp is famously – or infamously, depending on who you ask – not following the industry path down the complexity rabbit hole of heavy SPAs. We build using server-side rendering, Turbolinks, and Stimulus. All tools that are approachable and realistic for designers to adopt, since the major focus is just on HTML and CSS, with a few sprinkles of JavaScript for interactivity.

It’s very heartening to hear that not everyone is choosing to JavaScript All The Things.

The calamity of complexity that the current industry direction on JavaScript is unleashing upon designers is of human choice and design. It’s possible to make different choices and arrive at different designs.

Make Your ARIA Labels Sing on Key — Knowbility

A good look at the (over)use of the aria-label attribute that confirms the first rule of ARIA.

Tuesday, January 22nd, 2019

The Great Divide | CSS-Tricks

An excellent thorough analysis by Chris of the growing divide between front-end developers and …er, other front-end developers?

The divide is between people who self-identify as a (or have the job title of) front-end developer, yet have divergent skill sets.

On one side, an army of developers whose interests, responsibilities, and skill sets are heavily revolved around JavaScript.

On the other, an army of developers whose interests, responsibilities, and skill sets are focused on other areas of the front end, like HTML, CSS, design, interaction, patterns, accessibility, etc.

Friday, January 18th, 2019

Building a Progressively-Enhanced Site | Jim Nielsen’s Blog

This is an excellent case study!

The technical details are there if you want them, but far more important is consideration that went into every interaction. Every technical decision has a well thought out justification.

Friday, January 11th, 2019

It’s What You Make, Not How You Make It.

How did I miss this great post from 2016 by one of my favourite people‽ It’s even more more relevant today.

To me it doesn’t matter whether you write your HTML and CSS by hand or use JavaScript to generate it for you. What matters is the output, how it is structured, and how it is served to the client. When we allow our tools to take precedent over the quality of our output the entire web suffers. Sites are likely to be less accessible, less performant, and suffer from poor semantics.

Monday, January 7th, 2019

HTML+ Discussion Document: Images

Back in 1993, David Raggett wrote up all the proposed extensions to HTML that were being discussed on the www-talk mailing list. It was called HTML+, which would’ve been a great way of describing HTML5.

Twenty five years later, I wish that the proposed IMAGE element had come to pass. Unlike the IMG element, it would’ve had a closing tag, allowing for fallback content between the tags:

The IMAGE element behaves in the same way as IMG but allows you to include descriptive text, which can be shown on text-only displays.

Yeah, I know we have the alt attribute, but that’s always felt like an inelegant bolt-on to me.

Saturday, December 29th, 2018

The power of progressive enhancement

Andy’s slides:

We dive into why progressive enhancement is important and how we can leverage the power of Vanilla JavaScript, Web Components and modern CSS to deliver a hack-free, lightweight and progressive experience for our users.

as days pass by — Why isn’t it their job

The secret is: if you use semantic HTML, then they do the work, not you. Their browser does the work, not you. If your pages use semantic HTML, you’re not going to get bug reports saying that your web app doesn’t work in a screenreader, or your buttons don’t work without mouse clicks, or your site doesn’t show anything on a Yoyodyne SuperPhone 3 running FailBrowser, because it will and they will and it will. And using semantic HTML elements is no more effort; it’s just as easy to use main as it is to use div id="main". Easier, even.

The 100 Year Web (In Praise of XML)

I don’t agree with Steven Pemberton on a lot of things—I’m not a fan of many of the Semantic Web technologies he likes, and I think that the Robustness Principle is well-suited to the web—but I always pay attention to what he has to say. I certainly share his concern that migrating everything to JavaScript is not good for interoperability:

This is why there are so few new elements in HTML5: they haven’t done any design, and instead said “if you need anything, you can always do it in Javascript”.

And they all have.

And they are all different.

Read this talk transcript, and even if you don’t agree with everything in it today, you may end up coming back to it in the future. He’s playing the long game:

The web is the way now that we distribute information. We will need the web pages we create now to be readable in 100 years time, just as we can still read 100-year-old books.

Requiring a webpage to depend on a particular 100-year-old implementation of Javascript is not exactly evidence of future-thinking.

Saturday, December 15th, 2018

Using aria-live

A terrific explanation of the aria-live attribute from Ire. If you’re doing anything with Ajax, this is vital knowledge.