HTML5 has all but replaced Flash, Silverlight, XHTML and other platforms as a safer, more versatile solution on the web. So what is HTML5 and how has it managed to become the all-pervasive web-development tool? Today, we’ll look at the web’s most used markup language and how it has changed the way developers create websites and implement various modern functionalities in them.

Here we will learn about HTML5, its advantages, and how it differs from Flash, Silverlight and other web development platforms that it has either replaced already or is poised to do so going forward. So without further ado, let’s dive right in and learn why most web developers prefer HTML5, who maintains it and why it is recommended by the World Wide Web Consortium (W3C).

  • What is HTML5?
  • How Does HTML5 Work?
  • What Technologies Has it Replaced?
  • What Are the Advantages of HTML5?
  • What Are the Disadvantages of HTML5?
  • Which Browsers Support HTML5?

What is HTML5?

HTML5 is a programming language and the latest public-facing iteration of HyperText Markup Language, or HTML, created in 1989 by the inventor of the World Wide Web, Sir Tim Berners Lee. Recommended by the WWW Consortium (W3C), it is used for structuring and presenting content on the web and is maintained by a consortium of the major browser vendors, including Apple, Google, Mozilla and Microsoft. Together, they form the Web Hypertext Application Technology Working Group (WHATWG), which now has the sole authority over the HTML and DOM (Document Object Model) standards after W3C ceded control last year.

How Does HTML5 Work?

HTML5 includes all 3 basic web design components – HTML, CSS and JavaScript. While HTML is used to create text on a web page, CSS is used for the styling and to indicate how elements on a webpage will be presented. As for JavaScript, it is responsible for user activity and action on a webpage. Using these elements, developers can create responsive webpages that can automatically rearrange all elements to fit the screen of desktops, laptops and mobiles, irrespective of their size, resolution and aspect ratio.

HTML5 was first released in a public-facing form in 2008, with a major update in October 2014. It was intended to replace not only HTML4 (originally standardized in 1997) but also XHTML 1 and DOM Level 2 HTML. However, given its versatility and ease-of-development, W3C, which was developing XHTML 2.0 as a competing platform, stopped working on it and recommended HTML5 as the future of web development.

If you are still seeing such prompts, you need to stop visiting those sites because they’re either old, out-of-date sites that pose a security risk or are fake sites run by scammers trying to install malware on your system. As of September 2020, fewer than 0.035% of sites used Silverlight, 2.5% used Adobe Flash, and less than 0.017% used Java, making them pretty much redundant in the modern web built around HTML5.

There are many reasons why HTML5 has become the preferred web development platform. Not only is it easier to code in than other markup languages, but it also includes built-in rich multimedia features that ensure no other software or browser plugin is required to design a complete website from scratch. The technology allows web designers to develop all types of applications, animations and other multimedia features that run on a browser.

Another massive advantage of HTML5 is that it allows developers to easily port applications to mobile. Now that every browser ships with native support for the standard, it has also largely replaced legacy platforms like Flash and Silverlight, thereby improving security and offering a seamless browsing experience.

In spite of its near-ubiquity, HTML5 comes with its own set of problems that trouble both programmers and end users alike. Primary among them is the lack of a standard HTML5 video format, but there are also other issues that remain a problem in what is otherwise the most reliable, secured and feature-rich web development platform. Here are some of the disadvantages of HTML5:

One of the major issues with HTML5 is the confusion regarding video format support for different browsers. Even though all modern browsers incorporated HTML5 support several years ago, not everybody supports all HTML5 video formats. There’s often been confusion about which browser supports which video format, because that depends on not only the user agent, but also the platform (Windows, Android, Linux, etc).

It also doesn’t help that the ‘Living Standard‘ makes HTML a moving target for web developers who often have to second guess about support for new features. While some consider the continual upgrades to be an advantage, unexpected changes in the standard can render elements in a website useless until the admin issues a fix. In reality, this rarely happens with up-to-date sites, but it’s still an issue that keeps web designers on tenterhooks.

3. Gaming with JavaScript

Another major hurdle is gaming support because the only scripting language supported by HTML5, JavaScript, is a less-than-ideal platform for a strong gaming experience. Custom name spaces, member access, interfaces, and inheritance, have problems under JavaScript, forcing developers to look for workarounds. That said, game developers have still moved from Flash to HTML5 because of seamless cross-platform support across all user-agents.

As mentioned earlier, all modern browsers, including Edge, Firefox, Chrome, Safari and Opera, support at least some elements of HTML5 on all platforms. However, their support for the standard doesn’t manifest itself identically. As a rule of thumb, Firefox supports the widest range of HTML5 features, with Chrome following closely behind.

You can check out CanIuse.com for a detailed breakup of what’s supported by which version of which browser on what platform.

HTML5: The Present and Future of Web Development

HTML5 improves the way the web works, making it easier for developers to create great websites and for users to experience those creations irrespective of their device of choice or the browser they are using. It is the biggest and most popular web-development platform, and with its ever-evolving standards incorporating new features and functionalities, it’s likely to stay that way in the foreseeable future.