Validating HTML document

Browsers are nice dealing with errors, they try to render things which you had ment. It does not mean that we can write sloppy code, we need to ensure that we had written well formatted HTML document that adheres to standers. To perform that validation it is possible to navigate to validator.w3.org to ensure that HTML document does not have any errors. Of course if it is an internal only page and needs not to be made public then it is a bad idea to transfer that information.

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