Web Standards

Standards are set for web content by the World Wide Web Consortium, usually abreviated to W3C.

Having standards is always a good thing. For markup language some salient advantages are:

• reduced browser-specific problems so you can be confident that your site looks the same to all your visitors
• quicker development because browser-specific fixes don't have to be included
• easier and quicker style changes to your finished site

To achieve the above a developer needs to be using CSS code as well as HTML.

Pages conforming to CSS and HTML standards may be anointed with the W3C logos:

You can check your pages' validity yourself at the W3C site.