Why validate your CSS code?

 

All our sites are put through the W3C CSS Validation Service to ensure the quality of the coding, we aim to achieve at least level 2 validation, why do we do this?

It helps Cross-Browser, Cross Platform, and Future Compatibility

Even if you code your website to work properly in your favorite browser, a friend of yours or any other visitor to your website may be using a different browser. All browsers don't render pages equally, so your site may not appear in their browser as you had hoped. Your site may appear as you want it to in your web browser with bugs. If these bugs are fixed in later versions of your browser, your site may no longer appear as you want it to.

Coding your pages so that it is correct without errors will result in pages that are more likely to work across browsers and platforms. It is also a form of insurance against future versions of browsers, since all browsers aim towards compliance with the existing HTML and CSS standards.

Search Engine Visibility

When there are errors in a web page, browsers typically try to compensate in different ways. Hence some browsers may ignore the broken elements while others make assumptions about what the web designer was trying to achieve. The problem is that when search engines obtain your page and try to parse them for keywords, they will also have to make certain decisions about what to do with the errors. Like browsers, different search engines will probably make different decisions about those errors in the page, resulting in certain parts of your web page (or perhaps even the entire page if your error is early in the page) not being indexed.

Professionalism

Even if you test your website in all the various browsers in existence on all the platforms in use and find that it works perfectly in all, errors in your site reflect poorly on your business or site and your skills as a web developer.

Source: www.depiction.net