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The Deal with the Section Element

January 15th, 2020 Leave a comment Go to comments

Two articles published the exact same day:

  1. Bruce Lawson on Smashing Magazine: Why You Should Choose HTML5
  2. Adam Laki on Pine: The Difference Between
    and

They are comparing slightly different things, but they both involve the

element.

I find it pretty clear when you reach for a

: When you want that element to be essentially meaningless. You’re only using it for styling purposes.

I always think of RSS when I think of

: Would this little bit of stuff make sense as an entry (which doesn’t necessarily need to be the entire content of the article)? If yes, use

; if not, don’t.

Bruce has a go-to answer:

[…] think of

not just as a newspaper article, or a blog post, but as an article of clothing — a discrete entity that can be reused in another context. So your trousers are an article, and you can wear them with a different outfit; your shirt is an article, and can be worn with different trousers; your knee-length patent leather stiletto boots are an article.

More importantly, it has some actual functionality. Bruce mentions that Apple WatchOS specifically uses it to find content on pages.

But

is more nebulous. At one point, you were supposed to think of sections as places where your

–

headings would reset, but that never came to fruition because it required a thing called “HTML5 Outlining” which zero browsers support.

So should we use

it at all? According to Bruce, sometimes! Smashing Magazine’s design for articles has a summary at the beginning of the article. Visually, that’s fairly clear, but less-so for screen reader users. The solution was wrapping the summary in an element with an aria-label to make that clear. But you aren’t supposed to use aria-label unless that element also has a role. You could apply a role to a

, but

already has a good default role, so:

<section aria-label="quick summary">
  Summary text
</section>

Adam’s article (sorry, Adam) is very vague on the points.

The main difference comes from the semantic. If you have a part in your site or application which has its logic you need to use the

tag to declare it…

… use

when it is logically correct to make a part of your site or app readable to the assistive technology. It is an excellent approach if you keep in mind the screen readers.

So you get a role="region" automatically for sections, but I’m not sure that does anything for screen readers, sans the label. In a quick test (Chrome for desktop with VoiceOver enabled), a

without an aria-label just wasn’t there in the Landmarks section of the Web Rotor, but it showed up once it had an aria-label.

Point is: don’t just use

and assume you’re doing something good for accessibility. Its purpose is pretty limited and only useful for establishing landmarks. Even then, you aren’t helping that much. Leonie Watson in the comments:

When the choice is between a visually hidden heading and a section element with an accessible name there are a couple of things to consider before deciding which approach is the right one.

When a section element has an accessible name it becomes a navigable landmark element, so a screen reader user can use their screen reader’s shortcut key for navigating from one to the next – just like they can do with headings.

According to the most recent WebAIM screen reader user survey though, 68% of screen reader users prefer to navigate by headings compared to 2.9% who prefer landmarks.

So from a strict accessibility point of view, you could probably drop the heading, but from a usability point of view you really want to keep the heading – at least until more screen reader users express a preference for using landmarks to navigate content.

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