It is very easy ! The basic requirement is a Notepad in your computer . There are many tags used in HTML to make your page more attractive . Some tags have attributes . Every HTML document begins with an opening <HTML> tag and ends with a closing </HTML> tag . The tags are not case sensitive ( you can use either capital letters or small letters ) . There are six different heading levels : h1, h2 , h3 , h4 , h5 , h6.