If you are confused about your newly launched or updated HTML documents then World Wide Web Consortium(W3C) is the ultimate solution for you. W3C is a international organization for the world wide web. It could be happened in time of changing some data in your style sheet that after changing your website gone wrong or when you are going to start a new website. You are panicking that something is not right in your Cascading Style Sheet(CSS) you should try the validation bt W3C.
W3C’s primary duty is to make World Wide Web work well. As a result W3C have some strict guidelines. So W3C validation means that your site have to pass that guideline. And your passed means that you are right and ready for competition. For validation you just have to enter your web address into W3C’s free online validation service. If you are not passed then W3C will identify the problems and send you as a warning so that you could fix the error. And you your developers make it perfect.
