Having valid code is something that is not only encouraged, but highly recommended when developing a website. Invalid markup doesn’t exactly mean that a website won’t be read or displayed properly by a browser, however, which leaves many people wondering what the point of having valid code is to begin with. There are several answers to this question, like having valid code eases future maintenance that may need to be done. Valid code increases a developer’s chance of their site maintaining a consistent look across multiple browsers and platforms. And valid code not only teaches good practices, but it shows a degree of professionalism.There are
several resources available for validating code, so let’s take a look at what some of those options are and see which one works best for you.
AnyBrowser.com HTML Validation