国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

Table of Contents
headings would reset, but that never came to fruition because it required a thing called “HTML5 Outlining” which zero browsers support.
Home Web Front-end CSS Tutorial The Deal with the Section Element

The Deal with the Section Element

Apr 12, 2025 am 11:39 AM

The Deal with the Section Element

Two articles published the exact same day:

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

    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.

The above is the detailed content of The Deal with the Section Element. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What is 'render-blocking CSS'? What is 'render-blocking CSS'? Jun 24, 2025 am 12:42 AM

CSS blocks page rendering because browsers view inline and external CSS as key resources by default, especially with imported stylesheets, header large amounts of inline CSS, and unoptimized media query styles. 1. Extract critical CSS and embed it into HTML; 2. Delay loading non-critical CSS through JavaScript; 3. Use media attributes to optimize loading such as print styles; 4. Compress and merge CSS to reduce requests. It is recommended to use tools to extract key CSS, combine rel="preload" asynchronous loading, and use media delayed loading reasonably to avoid excessive splitting and complex script control.

External vs. Internal CSS: What's the Best Approach? External vs. Internal CSS: What's the Best Approach? Jun 20, 2025 am 12:45 AM

ThebestapproachforCSSdependsontheproject'sspecificneeds.Forlargerprojects,externalCSSisbetterduetomaintainabilityandreusability;forsmallerprojectsorsingle-pageapplications,internalCSSmightbemoresuitable.It'scrucialtobalanceprojectsize,performanceneed

Does my CSS must be on lower case? Does my CSS must be on lower case? Jun 19, 2025 am 12:29 AM

No,CSSdoesnothavetobeinlowercase.However,usinglowercaseisrecommendedfor:1)Consistencyandreadability,2)Avoidingerrorsinrelatedtechnologies,3)Potentialperformancebenefits,and4)Improvedcollaborationwithinteams.

CSS Case Sensitivity: Understanding What Matters CSS Case Sensitivity: Understanding What Matters Jun 20, 2025 am 12:09 AM

CSSismostlycase-insensitive,butURLsandfontfamilynamesarecase-sensitive.1)Propertiesandvalueslikecolor:red;arenotcase-sensitive.2)URLsmustmatchtheserver'scase,e.g.,/images/Logo.png.3)Fontfamilynameslike'OpenSans'mustbeexact.

What is Autoprefixer and how does it work? What is Autoprefixer and how does it work? Jul 02, 2025 am 01:15 AM

Autoprefixer is a tool that automatically adds vendor prefixes to CSS attributes based on the target browser scope. 1. It solves the problem of manually maintaining prefixes with errors; 2. Work through the PostCSS plug-in form, parse CSS, analyze attributes that need to be prefixed, and generate code according to configuration; 3. The usage steps include installing plug-ins, setting browserslist, and enabling them in the build process; 4. Notes include not manually adding prefixes, keeping configuration updates, prefixes not all attributes, and it is recommended to use them with the preprocessor.

What are CSS counters? What are CSS counters? Jun 19, 2025 am 12:34 AM

CSScounterscanautomaticallynumbersectionsandlists.1)Usecounter-resettoinitialize,counter-incrementtoincrease,andcounter()orcounters()todisplayvalues.2)CombinewithJavaScriptfordynamiccontenttoensureaccurateupdates.

CSS: When Does Case Matter (and When Doesn't)? CSS: When Does Case Matter (and When Doesn't)? Jun 19, 2025 am 12:27 AM

In CSS, selector and attribute names are case-sensitive, while values, named colors, URLs, and custom attributes are case-sensitive. 1. The selector and attribute names are case-insensitive, such as background-color and background-Color are the same. 2. The hexadecimal color in the value is case-sensitive, but the named color is case-sensitive, such as red and Red is invalid. 3. URLs are case sensitive and may cause file loading problems. 4. Custom properties (variables) are case sensitive, and you need to pay attention to the consistency of case when using them.

What is the conic-gradient() function? What is the conic-gradient() function? Jul 01, 2025 am 01:16 AM

Theconic-gradient()functioninCSScreatescirculargradientsthatrotatecolorstopsaroundacentralpoint.1.Itisidealforpiecharts,progressindicators,colorwheels,anddecorativebackgrounds.2.Itworksbydefiningcolorstopsatspecificangles,optionallystartingfromadefin

See all articles