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HTML is totally case Insensitive. It has no effect if you change the case or not. <HTML> <Html> <hTmL> <html> All the above tags are same. But it is preferred that you have to use same case for your whole document. Also all the code looks clean by using small case or capital case to whole document. Happy coding 😊.
HTML is Not Case Sensitive HTML tags are not case sensitive: <P> means the same as <p>. The HTML standard does not require lowercase tags, but W3C recommends lowercase in HTML, and demands lowercase for stricter document types like XHTML. https://www.w3schools.com/html/html_elements.asp
Html doesn't case sensitive, But lower case used . Just like handwriting.