Standard Compliance

There are common standards for Web content, like for example HTML, CSS, WAI-ARIA and JavaScript. Particularly for public websites/applications, standards help to avoid costs by allowing for cross-browser compatibility and device-agnostic development. Additionally, standards allow future browsers (and other applications) to correctly process the output of Internet-applications and websites programmed today, thereby prolonging their lifetime.

The responsive web design approach has broadened the understanding that the same web page may in detail look differently for different users. Prefering open standards will help to avoid vendor lock-in, which is rarely a good path to follow.

In general, it is advisable to stick to common specifications, and to follow the conventions and style of the respective programming language.