It is suggested that a developer should always use HTML validator to evaluate and revise the html to eliminate any errors or warnings.
An HTML validator is a specialised programme or application that checks a Web page's HTML markup for syntax and lexical mistakes. Because HTML is not compiled and is a very forgiving language in terms of faults, there is no rapid way to check for such issues. Everything still functions, however, as a result. Consequently, a separate programme is necessary. Every line of code in an HTML document is parsed and tokenized by a validator to look for syntax problems such elements with missing delimeters or other necessary parameters. Although a Web page can still be generated with syntax problems such open tags, misspelt words, omitted quotation marks, colons, or equal signs, the output might not be what the designer had intended.
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