#WHATWG HTML

[thecommoncoder]

How To Validate HTML Code – What You NEED To Know!

NEW VIDEO UP! Today's video is all about HTML validation. We'll talk about what HTML validation is, why it's important, and demonstrate several ways we can validate our HTML code to ensure that it is compliant with the latest web standards. Enjoy! https://youtu.be/fgaJVqjOe7w?si=iixRDzqVmvcqZQJK

[pen2print]

HTML5: The Modern Standard for Web Development

HTML5, the fifth revision of the HyperText Markup Language (HTML), is the current standard for creating and structuring content on the World Wide Web. Officially published by the World Wide Web Consortium (W3C) and the Web Hypertext Application Technology Working Group (WHATWG), HTML5 introduced several enhancements and new features to make web development more efficient, interactive, and…

[ayanahmed1]

应用于电子商务的 AMP 也增加了某些障碍

们都是优点吗？不，事实是，，在我们的在线商店中开始 AMP 编程应用程序之前必须考虑到这些障碍：设计限制AMP 意味着愿意接受有利于移动设备加载速度的设计限制。事实上，这种编程技术的操作对 HTML 标记的标记产生了重要的限制，因为应用了众所周知的AMP HTML。这是一种特殊的标记，它显着限制了影响结构和布局的代码的许多方面。另一方面，当加载页面时，在元素之间建立优先级顺序，首先显示文本并将图像和其他图形资源降级到第二级别。

无论是内部工作还是必须求助于外部开发人员

事实上，应用 AMP 意味着失去内容中的视觉丰富性，转而采用文本格式的信息本身。这可以被认为是一个负面因素，并且有许多网站管理员发现，为了提供更快的网站而失去有吸引力的外观和感觉是非常烦人的。初期（但快速）的进展尽管 AMP 项目在全球范围内拥有坚实的支持，并且已经有许多大公司和开发人员（或多或少地）加入了该计划，但事实是，它是一项仍处于起步阶段的技术。。这意味着并非所有开发专业人员都完全熟悉 AMP，并且很难找到适当的合格人员来实施它。然而，技术世界正在突飞猛进。

证明这一点的是，得益于WordPress 、PrestaShop 或 Magento 等开源CMS（内容管理系统）平台，创建具有在线销售功能的网站变得越来越容易。与此相关的是，AMP 很快就以简单的方式在 WordPress 中应用了插件，并且可以冒险的是，类似扩展的提供将在不同的现有平台上增加���增加成本毫无疑问，投资应该是另一个需要考虑的因素。投入大量时间使我们的网站编程适应 AMP 将涉及大量工作时间。，采取这一步骤都需要明确要进行的投资。如果在线商店从头开始看到光明，并且我们想选择定制开发，那么问题将是是从一开始就投资 AMP 编程还是留到以后再投资。当然，在请求 Web 开发的技术和经济建议时，强烈建议咨询相关机构，了解 AMP 实施的额外价格相对于仅遵循通常的 Web 开发参数进行的投资的细目。正如上一点所述，如果我们的网站是在开源 CMS 平台下创建的，而不是通过使用插件进行自定义 Web 开发，那么我们可以使用更低的成本。在线广告的附带损害如果我们将自己置于广告商的角色中， AMP可能会产生有害的一面。情况可能是，我们正在开展 AdWords 活动，通过我们感兴趣的某些网站、博客等上的展示网络或其他附属渠道来推广我们的商店。

如果我们要投放广告的这些网站是AMP

一切都表明，技术巨头的这种类型 WhatsApp 数据库 的措施只能伴随着这样的标准化，它可以克服上述大部分缺点，从而促进对这种类型的编程的访问。Google在 2015 年底创造了渐进式 Web 应用程序(PWA)一词，为那些与移动应用程序没有区别的 Web 应用程序起一个名字，从而促进���发展，同时建立了网站进入这个市场必须遵守的特征。类别。谷歌在这些技术上投入了大量资金，因为它已经看到用户对移动应用程序的忠诚度越来越高，而不是对网站的忠诚度，而拥有同时是移动应用程序的网站是扭转局面的最佳方式。然而，这并不是什么新鲜事，我几年前就已经写过有关Web 应用程序如何与移动应用程序无法区分的文章。事实上，这一切都始于 2005 年，当时Web 应用程序 1.0 标准（后来成为HTML5标准）开始在新创建的WHATWG内制定。

Progressive Web App名称中的“渐进

词来源于渐进增强开发策略，用于处理所有浏览器都没有的功能，从而从最基本的开始添加功能，以确保如果未启用更多高级功能，该网站仍然可以访问。Lighthouse -anlizador PWAGoogle制定了一系列网站必须满足的要点才能进入此分类，您可以通过以下链接进行查阅： https://web.dev/pwa-checklist/正如您将看到的，有些要点是提供计算机工程师所谓的功能需求。这些决定了应用程序可以做什么。其他要点是提供非功能性需求，例如良好的用户体验、性能、安全性等。所以 PWA不仅可以提供移动应用的功能，还必须完美实现。Google 为我们提供了Lighthouse工具，指导开发人员应对网站必须满足的众多要求，才能被视为 100% PWA。我们发现这个工具是 Chrome 中或开发人员工具的审核选项卡中的扩展。我们还可以选择通过命令行使用它，从 Node.js 开发框架包管理器安装它。下面让我们看看其中一些要求的摘要。渐进式 Web 应用程序必须满足的显着特征它必须具有响应性：设计必须自动适应任何屏幕分辨率。

使用推送通知：如果您仍然不知道它们是什么，我建议您阅读条目：在您的网站上推送通知以增加重复访问和转化，因为这是 PWA 最有趣的功能之一，因为另外一种可以为用户增加价值的新功能，它是一种新型的在线广告。改进了离线工作或网络质量较差的连接性。我之前已经写过一种名为“应用程序缓存”的技术来实现此目的，但该解决方案最终因导致足够多的问题而被丢弃，无法正确管理更新。所以现在应该使用Service Worker，这是一个允许我们可以想象的任何缓存策略实现的解决方案（而且它们���用于推送通知）。这些是小型 JavaScript 程序，仍然安装在用户的浏览器中，允许我们拦截请求以决定如何管理它们。最常见的缓存策略是缓存优先和网络优先，第一种策略是我们查阅缓存，然后向网络发起请求，第二种策略则相反。在每个功能中，我们可以具有不同的功能，例如向用户指示他们正在离线浏览或是否有可用更新。对于 URL 缓存，使用Cache API（它利用缓存存储），对于其余IndexedDB数据，不使用 Web 存储（本地存储和会话存储），也不使用任何其他存储 API，因为它们无法从服务人员。支持的空间取决于浏览器和可用空间。大量存储只能在征得用户许可的情况下进行。

Service Worker的操作图Service Worker的操作图它可以通过浏览器选项

目前仅限 Google 和 Opera）添加为具有自己的快捷方式的移动应用程序，从而鼓励重复访问。为此，我们必须创建一个manifest.json文件，在其中指定应用程序的显示方式：名称、所有必要尺寸的图标、界面按钮、启动 URL 等。然后，我们必须通过在标签内输入以下代码并将 文件上传到根目录来从 HTML 代码链接此文件此外，如果满足某些要求，Chrome将显示一个安装网络应用程序的横幅 （Opera已经宣布它也将有这个选项）。当前的这些要求是：用户已访问该页面 2 次，两次访问之间至少有 5 分钟的时间差，已注册 Service Worker，并且 文件具有某些强制参数（名称、短名称、图标）至少最多 144 像素和起始 URL）。添加到主页开发人员可以捕获浏览器决定显示横幅的时刻，以便在另一个更合适的场合启动它，因为那时用户将更有可能添加该应用程序。这可以在用户完成购买或预订时完成，或者只需在网站界面上放置一个突出的按钮，以便他们可以随时将其添加为应用程序。在以下链接中，我们有一个Microsoft PWA 生成器的示例，该生成器通过输入参数来创建文件快速：必须使用各类WPO技术，做到加载瞬间、加载时屏幕不跳动、界面响应即时等。在使用的 WPO 技术中，我们必须强调AJAX，或者现在也称为 API Fetch。

Google 建议为 最初加载的应用程序提供一个外壳

我们将仅在使用 Fetch API 导航期间修改主要内容。我们将在以后的文章中看到这带来的可索引性问题，其中我将讨论对于具有这种结构很有用的SPA（单页应用程序）框架，如果它们没有正确实现，我们将拥有不会出现的页面可转位。安全：必须有HTTPS。这对于能够为用户安装 Service Worker 也是必要的，因为这是确保 Service Worker JavaScript 来自所请求的域且未经可能的���客修改的最佳方式。可索引和可​​链接：PWA 必须可索引才能通过搜索引擎发现。不仅如此，Windows 应用商店还将在今年年底开始纳入其索引的 PWA，以增加其应用程序目录。目前尚不清楚将来我们是否会在 Google Play 或 Apple Store 等其他市场中看到 PWA，但如果发生的话，Google Play 很可能会这样做，因为他们正在抢占很多市场推广 PWA 并将其很好地集成到 Android 中是很困难的，而苹果并不热衷于免费应用程序。PWA 的内在技术特征这些应用程序是跨平台的，这意味着它们可以在任何设备上运行，无论是Android、IO、Windows Phone还是任何浏览器，因此节省了为每种类型的操作系统开发网站和应用程序的成本。

对于视频游戏和其他计算成本较高的应用程序

虚拟现实、增强现实、照片修饰、视频编辑等）来说，它们的速度不如原生应用程序，但使用目前正在开发的WebAssembly技术，区别就在于会很小，因为它允许您在客户端上执行 C 或 C++ 编译的代码。它们是除了提供内容之外还具有我们可以在任何移动甚至桌面应用程序中看到的功能的应用程序。他们可以访问摄像头、麦克风、GPS、加速计等。最后，请记住，您的网站没有必要在 Lighthouse 中获得 100% 的好评。达到这种卓越水平很困难，但通过实施 Google 清单中的几点，我们可以注意到流量的改善。我指的是推送通知，将网站作为应用程序添加到移动桌面的能力，最重要的是，那些最影响我们网站速度和用户体验的点，其中必须突出显示从缓存加载。使用Fetch 或AJAX API进行工作和导航。什么是 nofollow 链接属性？nofollow 链接属性可防止流行度从链接的源页面流向链接的目标页面。这意味着 接收链接的页面根本不会从来自该 链接的页面的流行度或可信度中受益。它出现于 2005 年，原因是博客评论中的负面链接垃圾邮件增加。允许您告诉搜索引擎不要点击该链接。您可以在我们的在线营销词典中的nofollow 属性的定义中找到更多相关信息。

我们的联系方式

电报：https://t.me/dbtodata

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[sky-prime]

КАКВО ПРЕДСТАВЛЯВА МИКРОДАТА ФОРМАТ ЗА BREADCRUMBS И ПОЛЕЗЕН ЛИ Е ТОЙ?

Microdata е спецификация на WHATWG HTML, която се използва за „гнездене“ на метаданни във вече съществуващо съдържание. Търсачките, роботите и браузърите разчитат и обработват Microdata от уеб сайта и я използват, за да предоставят на потребителите най - оптимално използване на уеб сайта.

Ако искате Вашата уеб страница да има повече предимства, съветваме Ви да ползвате микродата за breadcrumbs. При търсене, в резултатите на Google ще се визуализират редица от ключови думи, допринасящи за подреденост и изчистеност, вместо стандартния URL адрес.От Sky Prime Ви съветваме да посетите schema.org, където може да видите категория с изчерпателно съдържание по настоящата тема.

sky-prime.com - https://sky-prime.com/seo-on-page

[skyprimeblog]

КАКВО ПРЕДСТАВЛЯВА МИКРОДАТА ФОРМАТ ЗА BREADCRUMBS И ПОЛЕЗЕН ЛИ Е ТОЙ?

Microdata е спецификация на WHATWG HTML, която се използва за „гнездене“ на метаданни във вече съществуващо съдържание. Търсачките, роботите и браузърите разчитат и обработват Microdata от уеб сайта и я използват, за да предоставят на потребителите най - оптимално използване на уеб сайта.

Ако искате Вашата уеб страница да има повече предимства, съветваме Ви да ползвате микродата за breadcrumbs. При търсене, в резултатите на Google ще се визуализират редица от ключови думи, допринасящи за подреденост и изчистеност, вместо стандартния URL адрес. От Sky Prime Ви съветваме да посетите schema.org, където може да видите категория с изчерпателно съдържание по настоящата тема.

[irradiate-space]

Much like the controversial battery-levels API, it was implemented with good intent. It's so that webpages can 1) detect that they're not in focus, and 2) knowing that they're not in focus, avoid doing expensive stuff like rendering, downloading, or processing. It's especially important for prerendering, for avoiding autoplay, and for stuff with performance implications like web games and web video.

But yeah, it is really annoying when YouTube decides not to let you play video in a background tab on a mobile phone.

Today I learned about the document.visibiltystate property in web browsers, which reports to the page whether it's in focus or not.

Who the fuck allowed this to be implemented? Under what circumstances should any site ever have access to whether it's in fucking focus? The tab shouldn't know anything about what I'm doing with the rest of my computer! Or even the rest of my browser.

There seem to be some random extensions that allegedly turn it off. But I don't understand why that's not a core browser feature. I don't understand why the property is an allowable feature. This seems like a profound violation of how web browsers are supposed to function.

[ade-web]

Web Authoring Module

Web authoring is a major module as part of my course at Griffith college in Dublin.  The module is expected to introduce me as a student to the theories and methods behind building modern websites, which includes planning, researching, designing and coding. This is my my second week into the program and I find the course materials and content very interesting. I have started learning HTML (Hypertext Markup Language) which is a markup language comprising of elements/tags for documents to be displayed by the browser. The version of HTML we focus on is HTML5  which is the fifth and latest major version of HTML that is a World Wide Web Consortium (W3C) recommendation. The relationship between W3C and WHATWG working together on HTML and DOM, was learned.  The highlight of the week is  learning elements and closing elements such as headings, paragraph, bold, italics, break, comments,etc Finally created some web pages in the lab with basic structure as below <!DOCTYPE html> <html lang=“en”>       <head>            <meta charset= “UTF-8″>                       <title> </title>       </head>       <body>            <h1>            </h1>            <p>            </p>       </body>  </html>

[ray-on-web-authoring]

Intro to Lecture Week 2

Before today’s lecture, we were asked to view a video of a recorded lecture on HTML that Gemma put up on Moodle for us. It was a lecture on HTML. It delved into who created it, a thing called the ‘Browser Wars’ in 2005, and the Document Object Model (DOM). Before now, HTML had 2 different specs for creating websites/developing, created by W3C and WHATWG. Now, both have joined together to collaborate for HTML. We then learned about Markup, a system of annotating a text document to create something. We delved into the Table of Element then which was extremely useful to see as a graphic as it made things a lot clearer in my head. We looked into elements or tags, which are the building blocks of web pages, some of which include: paragraphs, headings, subheadings, images and links to name a few. We learned how nesting was important and when and how to do it! The most important thing I took from it was YOU MUST REMEMBER TO CLOSE YOUR TAG/ELEMENT (although there are some tags called Void Tags which do not close but we haven’t learned about them too much at the moment). Other things we looked at were the lines of code that you must include in your work at all times, including the DOCTYPE and UTF-8 meta code, and when, where and how to order them in your code. All HTML documents must have 4 specific elements: The Root Element, The Head Element, The Title Element and The Body Element. We were taught about attributes which provide additional information about contents, by giving a name and value. Another useful thing we learned was how to add comments to our document, which will be essential for this course, as Gemma wants us to use comments throughout our code so that she can see whether we understand the code we are writing. The final thing we delved into was the HTML Validator which I downloaded and installed into my Firefox browser, which allows us to inspect elements on the web, or  our code and see whether there are any warnings or errors present! This is a precursor to today’s lecture but I wanted to address this video because it proved really interesting and extremely useful before today’s class on HTML coding

[t-baba]

Firefox 70 is here

#414 — October 23, 2019

Read on the Web

Frontend Focus

Firefox 70 Released — The latest release includes a handful of interesting CSS changes, such as the display property now accepting two keyword values (for setting both inner and outer display types), password generation for input type='password' fields, improved underline styling, and more. There's also the usual Firefox 70 for developers post outlining all the key changes in a bulletpoint fashion.

Mozilla

Focusing on Focus — Focus behavior in Web browsers has been in flux and under-specified for years. Efforts are now underway to clear up some of the confusion (particularly around Shadow DOM and autofocus) and begin to firm up the specs “to hopefully make focus in HTML make sense to browser engineers and web authors”.

Rakina Zata Amni (WHATWG)

Frontends Without Backend with FaunaDB Auth + Native GraphQL — FaunaDB is a globally distributed, scalable database. Thanks to built-in security and native GraphQL, frontends can directly communicate with FaunaDB in a secure way which eliminates the need to pass through a backend and greatly reduces latency.

FaunaDB sponsor

The "P" in Progressive Enhancement Stands for "Pragmatism" — Demonstrates how using progressive enhancement with CSS can be used to build things up gradually. “With a Progressive Enhancement mindset, support actually means support. We’re not trying to create an identical experience: we’re creating a viable experience instead.”

Andy Bell

Can We Please Style The <select> Control? — Highlights issues developers are facing when working with the the built-in <select> element, and what efforts are being undertaken to hopefully improve it.

Greg Whitworth

Style Hover, Focus, and Active States Differently — Why you should (and how to) style hover, focus, and active states differently.

Zell Liew

💻 Jobs

Frontend Developer at X-Team (Remote) — Work with the world's leading brands, from anywhere. Travel the world while being part of the most energizing community of developers.

X-Team

Have You Tried Vettery? — Vettery specializes in tech roles and is completely free for job seekers. Create a profile to get started.

Vettery

📙 Articles, Tutorials & Opinion

Making Tables Responsive with Minimal CSS — When creating table-based layouts you may be tempted to implement some sort of custom grid-system or pull in a pre-built library. The author argues against this, recommending using just “tables and some simple CSS”.

Bradley Taunt

Box Alignment and Overflow — Runs through a data-loss issue you may face when using box alignment properties in certain scenarios, and highlights how the 'safe' overflow alignment keyword can help prevent such a loss.

Chen Hui Jing

State Management for Flutter Apps with MobX — Learn how to use MobX to ease state management on a Flutter project.

CircleCI sponsor

How to Design Delightful Dark Themes — Plenty of practical tips here on how to design dark themes that are “readable, balanced, and delightful”.

Teresa Man

Options for Hosting Your Own Non-JavaScript-Based Analytics — Rounds-up a range of alternatives to Google Analytics.

Chris Coyier

The 'Perfect' Responsive Menu — Here’s how to create a menu that is accessible and works across mobile and desktop browsers without any duplication.

Polypane

JAMstack Tools and The Spectrum of Classification — An overview of JAMStack services and tools, along with some notes on their pros and cons.

Chris Coyier

The React Hooks Guide: In-Depth Tutorial with Examples. Start Learning

Progress KendoReact sponsor

An Introduction to Regular Expressions for Web Developers

Chris Achard

🔧 Code, Tools & Resources

Peaks.js: Interact with Audio Waveforms — A client-side JavaScript component to display and interact with audio waveforms in the browser. Here’s the related GitHub repo.

Indrek Lasn

TinaCMS: A Site Editing Toolkit for Modern React-Based Sites — An open-source real-time site editing toolkit currently aimed at Gatsby and Next.js users.

Tina

Open Doodles: A Collection of Free CC0 'Sketchy' Illustrations — You can even generate a set with your own custom colors (as above).

Pablo Stanley

Typetura: Fluid Typesetting — We linked to this responsive typography tool when it was in beta earlier this year, and now it’s generally available (paid). It'll help set up text transitions between breakpoints — here’s a demo of it in action.

Typetura

▶  A Realistic 'Water Effect' with Just HTML & CSS — A very convincing effect using the <feTurbulence> SVG filter. Here's the code.

Red Stapler

   🗓 Upcoming Events

VueConfTO 2019, November 11-12 — Toronto, Canada — The first ever Vue Conference in Canada.

Chrome Dev Summit, November 11-12 — San Francisco, USA — A two-day summit to learn about the latest from Chrome, plus techniques for building the modern Web. Note: Registrations are now closed, but the event can be joined remotely.

Performance Now, November 21-22 — Amsterdam, Netherlands — A single track conference with fourteen speakers, covering the most important web perf insights.

HalfStack Conf, November 22 — London, UK — A single day event focused on UI-centric JavaScript and web development.

Frontend Con, November 26-27 — Warsaw, Poland — Brings together 30+ experts with over 500 experienced frontend pros from all over the world.

dotCSS, December 4 — Paris, France — The largest CSS conference in Europe.

by via Frontend Focus https://ift.tt/2Jgg4vc

[everythings-a-okay]

História do HTML

HTML foi desenvolvido no início da década de 1990 por Tim Berners-Lee no CERN, em Genebra, Suíça, juntamente com o protocolo HTTP dedicado à transferência de documentos nesse formato. Em 1989, Berners-Lee propôs um projeto para publicar hipertextos, conhecidos como "World Wide Web". Dentro deste projeto, o servidor Web "httpd" (HyperText Transfer Protocol daemon) e o cliente WorldWideWeb (o primeiro navegador da história) nasceram, cujo desenvolvimento começou em outubro de 1990, e cujo uso foi exclusivamente interno ao CERN. até a sua publicação na Internet em 1991. Assistida por seus colegas dentro do Instituto suíço, Berners-Lee ajudou a definir a primeira versão do HTML, que foi oficialmente tornado público em junho 1993, coassinado com Daniel Connolly e apoiado pelo grupo de trabalho da Internet Engineering Task Force (IETF) chamada integração de recursos de informações da Internet, para propor-lo como um padrão IETF.

Em 1994 a língua tornou-se generalizada após os primeiros usos comerciais da Web, assim, no mesmo ano, o World Wide Web Consortium nasceu, e a partir desse momento, o desenvolvimento de HTML tornou-se a prerrogativa do W3C.

Em 1995, o W3C definiu a versão 3,0 do HTML, que foi seguido pela versão 3,2 em 1997, e finalmente as primeiras especificações HTML4 chegaram em 1998.

Versão 4, 1, publicada em 24 de dezembro de 1999 e a penúltima versão oficial, é o resultado dos vários alargamentos e melhorias da década anterior, em particular na separação do nível actual de formatação, ou seja, a do Ele descreve os aspectos gráficos do documento, em uma entidade separada do HTML, as folhas de estilo em cascata (CSS), definidas no mesmo ano em sua primeira versão, nível 1. Essa distinção, entre o conteúdo e o aspecto final do documento, permite que diferentes navegadores e dispositivos representem o mesmo conteúdo de uma maneira adequada aos diferentes recursos e tamanhos de gráficos disponíveis. Embora isso exija que os desenvolvedores da Web criem personalizações de folhas de estilo, por outro lado, ele garantiu a propagação máxima da Web e impediu que ele se tornasse um meio de elite.

Em Janeiro 2000, foi liberado como um padrão de XHTML 1,0,uma variação de HTML4 que use o XML 2,0 em vez de SGML como um metalinguage da marcação, para melhorar sua interoperabilidade com outras línguas da família tais como SVG e MathML o W3C decidiu reformulá-lo HTML4 e para continuar o desenvolvimento somente em XHTML [8] e em maio 2011 XHTML 1,1 transformou-se um padrão oficial.

Ao longo do novo milênio, o W3C começou a trabalhar em dois novos projetos, um visando estender o XHTML, e o outro pretendia definir uma nova linguagem que não seria compatível com as versões antigas de HTML e XHTML, conhecidas como XHTML 2 ( o último projeto foi oficialmente declarado falido no final de 2010, a favor de uma abordagem menos rígida).

Em 2004, após um dia de estudo, um grupo de trabalho alternativo foi formado para o consórcio: Apple, Mozilla Foundation, Opera Software e, mais tarde, Google, eles se reúnem no Hypertext Application Technology Working Group (WHATWG) Web e começar desenvolvimento de uma nova versão do HTML, preocupada com o desinteresse em HTML demonstrado pelo consórcio. Em 2006 o W3C decidiu participar do desenvolvimento do HTML5 e em 2007 juntou-se ao WHATWG, os dois grupos colaboraram até 2011, quando perceberam que tinham objetivos irreconciliáveis: o consórcio queria traçar uma linha e publicar uma nova versão do padrão, enquanto o WHATWG queria um padrão sempre em mudança. O W3C publicou sua quinta revisão de especificação em 28 de outubro de 2014.

Os documentos HTML são atualmente capazes de incorporar muitas tecnologias, que oferecem a capacidade de adicionar controles de renderização de gráficos mais sofisticados, interações dinâmicas do usuário, animações interativas e conteúdo para o documento vinculado ao hiperlink Multimídia. São linguagens como CSS, JavaScript, XML, JSON ou outros aplicativos de mídia de animação vetorial ou aplicativos de mídia de streaming de áudio ou vídeo.

[kimihito]

HTMLの仕様に関する大きな発表。今までW3CとWHATWGが別々にHTMLの仕様書を出していたが、今後は単一バージョンを共同開発する方針に。https://t.co/hyL0r5goEX pic.twitter.com/9J0Iuye3s1— 池田 泰延 / ICS (@clockmaker) May 28, 2019

http://twitter.com/clockmaker/status/1133302649795670018

[mjmwebdesignz]

HTML 5

HTML 5

HTML5 is the most recent version which is used to markup language used to generate the framework and content of webpages. HTML5 is the most recent web standard released by the World Wide Web Consortium (W3C). HTML5 is a full package combining CSS and Javascript that can be used to create websites as well as handle presentation, add functionality, and utilise Web APIs. Previously, HTML was just used to design the structure of websites.

Since HTML5, the code that specifies web pages, is the lightest and fastest version, it is advised to use it while developing new online apps.

The Web Hypertext Application Technology Working Group (WHATWG), an association of the major browser manufacturers, is responsible for maintaining HTML5. During May, 2019,  W3C declared that the WHATWG would be the only publisher of the HTML and DOM standards.

HTML5 encompasses more than simply HTML; it also includes CSS, Javascript, and APIs. HTML is used to create the structure of a webpage, CSS is used to enhance the presentation layer's appearance, and Javascript is used to give HTML elements functionality. Embedded fonts, drag-and-drop, geolocation, microdata, audio, and video, as well as canvas-based drawing and animation, offline storage, and web APIs, to name a few.

HTML5 and features of Flash

Although some HTML5 features are occasionally compared to Adobe Flash, the two platforms are very different from one another. Both offer tools for integrating Scalable Vector Graphics into web pages as well as for playing audio and video. However, HTML5 by itself cannot support animation or interactivity. It needs to be improved with CSS3 or JavaScript. HTML5 can't directly match many of the features of Flash.

A few new features

Many brand-new syntactic features are added in HTML5. Expandable sections are natively implemented through <summary>...</summary> and <details>...</details> rather than depending on CSS or JavaScript, and support for scalable vector graphics (SVG) content and MathML for mathematical formulas was also added. These changes allow for the native inclusion and handling of multimedia and graphical content.

Structure elements like  <main>, <section>, <article>, <header>, <footer>, <aside>, <nav>, and <figure> are added to documents to improve their semantic content.

Modifications

 A number of elements and characteristics were altered, redefined, or standardised, including <a>, <cite>, and <menu>. Other elements and attributes were eliminated, while new ones were added. The HTML5 definition now includes the APIs and Document Object Model (DOM) as core components, and HTML5 now more clearly outlines how incorrect pages should be handled.

[ceyhanmedya]

HTML

New Post has been published on https://hazirbilgi.com/what-is-html-when-and-by-whom-was-html-created/

HTML

What is HTML? When and by whom was HTML created?

HTML  is a markup language that defines the structure of web pages. HTML is one of the basic building blocks of every website . For this reason, it is among the first details that web developers will want to learn. 

While HTML is an important building block, it is not enough to make a web page look good. It  must be supported by CSS  and  JavaScript  . HTML is essentially code and is used to structure the content of a web page. 

The content on the web page can consist of a number of different paragraphs, images and tables. It is possible to format them with HTML. In this way, the web browser knows how to configure the web page that a person visits and displays it in the direction desired by the developer.

What is HTML and when was it invented?

HTML or  hypertext markup language is a markup language developed for displaying materials or data on the internet. Each material has a known buyer location,  called a web page  . Web pages contain hypertext links that allow the fetching of related pages.

HTML is the markup language used to code web pages. HTML  was designed by  British scientist Sir Tim Berners-Lee in 1980 . HTML markup tags  contain document elements such as headings, paragraphs, and tables. Once formatted, they can be viewed by programs or applications known as web browsers.

When viewing a web page, web browsers interpret it according to permitted technology. Thus, items such as headings, paragraphs, and tables are presented adapted to the screen size and font used. HTML documents also contain anchor links, called links to other web pages.

What is Semantic HTML?

Semantic HTML is the conveying of literal meanings for the uses of HTML tags. Semantic HTML was used effectively throughout most of the 90’s and  became an important part��of the standard HTML structure . Since the late 90’s,  CSS has become more important in web pages when it has been used effectively .

Semantic HTML 

It consists of tags such as , ,,, and . One of the most important reasons to use semantic HTML tags is that web crawlers can easily index the web page. In this direction, it is possible to improve the web page in terms of SEO . Also, semantic HTML is important for accessing web pages from screen readers.

What are HTML Versions?

After HTML was designed, it has developed in many different forms over the years. For this reason, the HTML versions that are used effectively have changed from time to time. There are five different versions of HTML that are used effectively. Each of them made extra contributions to the HTML structure, making it easier for the developers to use it.

HTML 1.0: It is the first version developed for HTML. It was published in 1991 and was used effectively until 1995.

HTML 2.0: Version released in 1995. It has been accepted as the standard version in web design. Added support for features such as text boxes and buttons.

HTML 3.2: Published by the W3C in 1997. It provided extra support in terms of table creation and form elements. It is considered the official standard since 1997.

HTML 4.01: Released in 1999. It is the stable language for the HTML language and is considered the official standard. It has added CSS support to the HTML language.

HTML5: It is the newest version of the HTML language and was announced in 2008. This version  is developed by W3C and  WHATWG .

What’s the Difference Between HTML Tags, Elements, and Attributes?

HTML tags , HTML elements, and HTML attributes are often confused and used interchangeably when defining. However, there are differences between these three elements. Each  HTML tag has its own unique meaning. HTML elements are used to describe content. HTML attributes provide additional information for existing HTML elements.

What are HTML Tags?

HTML defines the formatting of a particular web page. For this reason, the text, images and other content on the page should be displayed in a shaped way. For example, you may want some text to be uppercase, lowercase, bold, or italic. To do this,  you need to use HTML tags .

HTML tags are like keywords that define how the web browser will display the content. When a web browser reads a document containing HTML, it reads it from top to bottom and from left to right. Thanks to HTML tags, a web browser can distinguish between HTML content and simple content. Each HTML tag can have different properties.

What are HTML Elements?

HTML  consists of three elements , opening tag, content and  closing tag . Some elements are used as empty. HTML elements are often confused with HTML tags. However, an element consists of a combination of three different elements. All HTML files are made up of elements. These elements are responsible for creating web pages. They also describe the content on the web page.

Theoretically, the opening tag, content, and closing tag should go together. Some elements may not have content and closing tags. Such elements  are called empty elements or self- closing elements  . For example, a line spacer  and a straight long line.

elements in this structure.

What are HTML Attributes?

HTML attributes are placed in the opening tag, and they  range from the “style” to  the “id” description. HTML attributes help convey more information about an element. In addition, these attributes ensure that needs such as styling elements on the web page with JavaScript are met.

While HTML attributes provide additional information about elements, they are modifiers of the HTML element. Each element defines the behavior of the element to which it is attached. HTML attributes must always be applied with the start tag. Although the names to be given to HTML attributes are case sensitive, standard usage consists of lowercase letters.

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[sakshampareekwa]

HTML

HTML stands for Hyper-Text Markup Language was initially created by W3C and WHATWG in 1993 and is a code tool that is employed to organize a web page's content. It is used to create a layout for a webpage which focuses on text and images. It is also a structure of a webpage which consists of a series of elements which tell the browser how to display a particular content, be it written or graphical. Using HTML components, such as tags and attributes, enables the development and structuring of sections, paragraphs, and links according to our customization ability. There are numerous uses for HTML, some of the broadest use cases are Web Development, Internet Navigation and Web Documentation. In web development, the developers employ HTML code to control how text, hyperlinks, and media files are displayed by browsers. In internet navigation, since HTML is widely used to embed hyperlinks, users may navigate and insert links between relevant pages and websites with ease. In the case of web documentation, HTML allows for document organization and formatting which is like Microsoft Word in a way. The fact that HTML cannot provide dynamic functionality means that it is not regarded as a programming language. It is now regarded as a recognized web standard. The HTML specifications are developed and updated frequently by the World Wide Web Consortium (W3C). W3C primarily verifies HTML and other standards. There have been numerous versions of HTML produced since its initial release. Its 1.0 version, sometimes known as HTML, is the original. The most recent and most widely used version of HTML is HTML 5 which was released in 2014.