A lot of care is to be taken while putting together a website. Many times it happens that a certain document is designed keeping in mind a specific screen resolution. So in contrasting situation it will either get jammed together or will break from unexpected lines in the page. You have to take care and see to it that a page on your website is suited to many resolutions. The best way to escape these shortcomings is to test your document through more than one location and with various color depths. Even if you keep your resolution to a minimum of 800×600 pixels, you do not know when a person might open it in even less resolution or even higher resolution. If you want to play safe then it is best to validate the document. It verifies if your code is up to the standards and also check if your document has any minor or silly errors. The basis of any document standard is informed by the DOCTYPE declaration. A validation code can be used to inform of what features does it support besides this it is used by validation clients mostly to validate the code within the document. Adobe’s Dreamweaver is used as a tool by the validation. Following are some of the resources where one can validate the codes: The WDG validation tool or the online W3C HTML and such validation tools.
About the online CSS validation resource. There are times when the document looks like in compliance to HTML but the validation tools do not think so.
Points to be take care of before the validation:
- Expect the (form) tag, the [input] element should be enclosed within a block factor.
- A heading, [div], [pre] and so on can be used instead of the paragraph tag [p].
I like this website because so much useful stuff on here : D.