With HTML, the essentials are doctype declaration, and . But, you will be amazed to know that a valid HTML document can work without the element. The doctype declaration will come always since it tells and instructs the browser about what the page is about.Let’s see an example; here we won’t use the tag. Still, the HTML Document is valid and will work correctly like any other valid HTML DocumentExampleLive Demo    Title of the document           This is heading 1       This is demo text.    

HTML document is a web page, which helps you in showing content on the website. It consists of tags, which has an opening as well as closing tags. However, some tags do not come in pairs i.e. they do not have a closing tag. The basic minimal structure also has some tags, which you need to add.doctypeThis is a doctype declaration, which begins the HTML program and gets added as . It is added to tell and instruct the browser about the document.